Wireless communications method and system, network device, and user equipment

ABSTRACT

A wireless communications method and system, a network device, and user equipment. The method includes: sending, by a network device, resource configuration information to user equipment, where the resource configuration information is used to indicate a first transmission resource corresponding to first transmission, and duration of a transmission resource occupied by one transmission of the first transmission is less than 1 millisecond; and communicating, by the network device, with the user equipment based on the first transmission resource. In this way, a transmission delay can be shortened, user experience can be greatly improved, and performance of a wireless network can be greatly enhanced.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.15/901,572, filed on Feb. 21, 2018, which is a continuation ofInternational Application No. PCT/CN2015/087740, filed on Aug. 21, 2015.All of the afore-mentioned patent applications are hereby incorporatedby reference in their entireties.

TECHNICAL FIELD

The embodiments relate to the communications field, and morespecifically, to a wireless communications method and system, a networkdevice, and user equipment.

BACKGROUND

In the Long Term Evolution (LTE) protocol, as shown in FIG. 1 and FIG.2, frame structures are classified into a frequency division duplex(FDD) frame structure and a time division duplex (TDD) frame structure.A basic unit of the two types of frame structures is as follows: One 1ms subframe includes two timeslots, and each timeslot occupies 0.5 ms.One radio frame occupies 10 ms. During transmission, a minimum time unitused for sending data is a 1 ms subframe. That is, in a transmissionprocess, resource mapping needs to be performed, in a 1 ms time unit, ondata to be received and sent by particular user equipment, and datagenerated after the mapping is transmitted in a 1 ms subframe. Further,in a design of an entire LTE system, on a UE side, in consideration of alimitation on a receiving delay and a processing delay of a maximum datapacket in 1 ms, after receiving data in a subframe n, user equipment canperform corresponding sending only in a subframe n+k, where k≥4.Therefore, a round trip time (RTT) not less than 8 ms is required in oneuplink transmission during which a base station schedules uplink dataand transmits downlink data and then the base station performscorresponding feedback.

In a TDD system, because uplink transmission and downlink transmissionoccupy different subframes, an RTT is usually greater than 8 ms. Forexample, the RTT may be 13 ms or 16 ms in a TDD configuration. This 8 msis a minimum delay required by an air interface required in an RTT for asingle transmission. If a signaling interaction process in a servicetransmission process is considered, such as M times of interaction, adelay from service initiation to beginning of service transmission is atleast 8M. If M=10, an 80 ms delay is required. This greatly affects userexperience and performance of a wireless network.

SUMMARY

The embodiments provide a wireless communications method and system, anetwork device, and user equipment, so as to shorten transmission delay,improve user experience, and enhance performance of a wireless network.

According to a first aspect, a wireless communication method isprovided, including: sending, by a network device, resourceconfiguration information to user equipment, where the resourceconfiguration information is used to indicate a first transmissionresource corresponding to first transmission, and duration of atransmission resource occupied by one transmission of the firsttransmission is less than 1 millisecond; and communicating, by thenetwork device, with the user equipment based on the first transmissionresource.

According to a second aspect, a wireless communication method isprovided, including: receiving, by user equipment, resourceconfiguration information sent by a network device, where the resourceconfiguration information is used to indicate a first transmissionresource corresponding to first transmission, and duration of atransmission resource occupied by one transmission of the firsttransmission is less than 1 millisecond; and communicating, by the userequipment, with the network device based on the first transmissionresource.

According to a third aspect, a wireless communication method isprovided, including: sending, by a network device, configurationinformation to user equipment; and receiving, by the network device, ademodulation reference signal (DMRS) that is generated according to theconfiguration information and that is sent by the user equipment, whereall time domain symbols included in a subframe in which a time domainsymbol used by the user equipment to generate the DMRS is located areallocated to M user equipments, and M is an integer not less than 2.

According to a fourth aspect, a wireless communication method isprovided, including: receiving, by user equipment, configurationinformation sent by a network device; generating, by the user equipment,a DMRS according to the configuration information, where all time domainsymbols included in a subframe in which a time domain symbol used togenerate the DMRS is located are allocated to M user equipments, and Mis an integer not less than 2; and sending, by the user equipment, theDMRS to the network device.

According to a fifth aspect, a wireless communication method isprovided, including: sending, by a network device, resource indicationinformation to user equipment, where the resource indication informationis used to indicate a resource occupied by an uplink control channelrelated to first transmission, and duration of occupying a resource byone transmission of the first transmission is less than 1 ms; andreceiving, by the network device, uplink control information that isrelated to the first transmission and that is sent by the user equipmenton the resource occupied by the uplink control channel.

According to a sixth aspect, a wireless communication method isprovided, including: obtaining, by user equipment, a resource occupiedby an uplink control channel related to first transmission, whereduration of occupying a resource by one transmission of the firsttransmission is less than 1 ms; and sending, by the user equipment onthe resource occupied by the uplink control channel related to the firsttransmission, uplink control information related to the firsttransmission to a network device.

According to a seventh aspect, a network device is provided, including:a transceiver module, configured to send resource configurationinformation to user equipment, where the resource configurationinformation is used to indicate a first transmission resourcecorresponding to first transmission, and duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond; and a processing module, configured to control thetransceiver module to communicate with the user equipment based on thefirst transmission resource.

According to an eighth aspect, user equipment is provided, including: atransceiver module, configured to receive resource configurationinformation sent by a network device, where the resource configurationinformation is used to indicate a first transmission resourcecorresponding to first transmission, and duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond; and a processing module, configured to control thetransceiver module to communicate with the network device based on thefirst transmission resource.

According to a ninth aspect, a network device is provided, including: asending module, configured to send configuration information to userequipment; and a receiving module, configured to receive a DMRS that isgenerated according to the configuration information and that is sent bythe user equipment, where all time domain symbols included in a subframein which a time domain symbol used by the user equipment to generate theDMRS is located are allocated to M user equipments, and M is an integernot less than 2.

According to a tenth aspect, user equipment is provided, including: atransceiver module, configured to receive configuration information sentby a network device; and a signal generation module, configured togenerate a DMRS according to the configuration information, where alltime domain symbols included in a subframe in which a time domain symbolused to generate the DMRS is located are allocated to M user equipments,and M is an integer not less than 2. The transceiver module is furtherconfigured to send the DMRS to the network device.

According to an eleventh aspect, a network device is provided,including: a sending module, configured to send resource indicationinformation to user equipment, where the resource indication informationis used to indicate a resource occupied by an uplink control channelrelated to first transmission, and duration of occupying a resource byone transmission of the first transmission is less than 1 ms; and areceiving module, configured to receive uplink control information thatis related to the first transmission and that is sent by the userequipment on the resource occupied by the uplink control channel.

According to a twelfth aspect, user equipment is provided, including: anobtaining module, configured to obtain a resource occupied by an uplinkcontrol channel related to first transmission, where duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms; and a transceiver module, configured to send, on theresource occupied by the uplink control channel related to the firsttransmission, uplink control information related to the firsttransmission to a network device.

According to a thirteenth aspect, a wireless communications system isprovided, including the network device in the seventh aspect and theuser equipment in the eighth aspect.

According to a fourteenth aspect, a wireless communications system isprovided, including the network device in the ninth aspect and the userequipment in the tenth aspect.

According to a fifteenth aspect, a wireless communications system isprovided, including the network device in the eleventh aspect and theuser equipment in the twelfth aspect.

Based on the foregoing features, according to the wirelesscommunications method and system, the network device, and the userequipment provided in the embodiments, the network device sends theresource configuration information to the user equipment. The resourceconfiguration information is used to indicate the first transmissionresource corresponding to the first transmission, and the duration of atransmission resource occupied by one transmission of the firsttransmission is less than 1 millisecond. The network device communicateswith the user equipment based on the first transmission resource. Inthis way, a transmission delay can be shortened, user experience can begreatly improved, and performance of a wireless network can be greatlyenhanced.

BRIEF DESCRIPTION OF DRAWINGS

To describe the solutions in the embodiments more clearly, the followingbriefly describes the accompanying drawings required for describing theembodiments or the prior art. Apparently, the accompanying drawings inthe following description show merely some embodiments, and a person ofordinary skill in the art may still derive other drawings from theseaccompanying drawings without creative efforts.

FIG. 1 is a schematic diagram of a frequency division duplex framestructure of a radio frame in the prior art;

FIG. 2 is a schematic diagram of a time division duplex frame structureof a radio frame in the prior art;

FIG. 3 is a schematic architecture diagram of a communications system towhich an embodiment is applied;

FIG. 4 is a schematic flowchart of a wireless communication methodaccording to an embodiment;

FIG. 5 is another schematic flowchart of a wireless communication methodaccording to an embodiment;

FIG. 6(a) is another schematic flowcharts of a wireless communicationmethod according to an embodiment;

FIG. 6(b) is still another schematic flowcharts of a wirelesscommunication method according to an embodiment;

FIG. 7(a) is a schematic flowchart of a wireless communication methodaccording to another embodiment;

FIG. 7(b) is another schematic flowchart of a wireless communicationmethod according to another embodiment;

FIG. 7(c) is another schematic flowchart of a wireless communicationmethod according to another embodiment; FIG. 8 is still anotherschematic flowchart of a wireless communication method according to anembodiment;

FIG. 9 is still another schematic flowchart of a wireless communicationmethod according to an embodiment;

FIG. 10 is still another schematic flowchart of a wireless communicationmethod according to an embodiment;

FIG. 11 is a schematic flowchart of a wireless communication methodaccording to still another embodiment;

FIG. 12 is another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 13(a) is still another schematic flowchart of a wirelesscommunication method according to still another embodiment;

FIG. 13(b) is still another schematic flowchart of a wirelesscommunication method according to still another embodiment

FIG. 14(a) is still another schematic flowchart of a wirelesscommunication method according to still another embodiment;

FIG. 14(b) is still another schematic flowchart of a wirelesscommunication method according to still another embodiment;

FIG. 15 is still another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 16 is still another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 17 is still another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 18 is a schematic flowchart of a wireless communication methodaccording to still another embodiment;

FIG. 19(a) is a schematic diagram of a location of a DMRS on atime-frequency resource according to an embodiment;

FIG. 19(b) is another schematic diagram of a location of a DMRS on atime-frequency resource according to an embodiment;

FIG. 19(c) is another schematic diagram of a location of a DMRS on atime-frequency resource according to an embodiment;

FIG. 20(a) is a schematic diagram of a location of a DMRS on atime-frequency resource according to another embodiment;

FIG. 20(b) is another schematic diagram of a location of a DMRS on atime-frequency resource according to another embodiment;

FIG. 21 is another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 22 is a schematic flowchart of a wireless communication methodaccording to still another embodiment;

FIG. 23 is another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 24 is a schematic flowchart of a wireless communication methodaccording to still another embodiment;

FIG. 25 is a schematic diagram of a location of an uplink controlchannel in system bandwidth according to an embodiment;

FIG. 26 is a schematic flowchart of a wireless communication methodaccording to still another embodiment;

FIG. 27 is another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 28 is still another schematic flowchart of a wireless communicationmethod according to still another embodiment;

FIG. 29 is a schematic block diagram of a network device according to anembodiment;

FIG. 30 is a schematic block diagram of user equipment according to anembodiment;

FIG. 31 is a schematic block diagram of a network device according toanother embodiment;

FIG. 32 is a schematic block diagram of user equipment according toanother embodiment;

FIG. 33 is a schematic block diagram of a network device according tostill another embodiment;

FIG. 34 is a schematic block diagram of user equipment according tostill another embodiment;

FIG. 35 is a schematic block diagram of a network device according tostill another embodiment;

FIG. 36 is a schematic block diagram of user equipment according tostill another embodiment;

FIG. 37 is a schematic block diagram of a network device according tostill another embodiment;

FIG. 38 is a schematic block diagram of user equipment according tostill another embodiment;

FIG. 39 is a schematic block diagram of a network device according tostill another embodiment; and

FIG. 40 is a schematic block diagram of user equipment according tostill another embodiment.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The following describes the solutions in the embodiments with referenceto the accompanying drawings in the embodiments. Apparently, thedescribed embodiments are some but not all of the embodiments. All otherembodiments obtained by a person of ordinary skill in the art based onthe embodiments without undue experiment shall fall within theprotection scope.

It may be understood that, the solutions of the embodiments may beapplied to various communications systems, such as a Global System forMobile Communications (GSM) system, a Code Division Multiple Access(CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system,a Long Term Evolution (LTE) system, an LTE frequency division duplex(FDD) system, LTE time division duplex (TDD) system, a Universal MobileTelecommunications System (UMTS), and a future 5G communications system.

It may be understood that in the embodiments, user equipment may also bereferred to as terminal device (Terminal Equipment), a mobile station(MS), a mobile terminal (Mobile Terminal), and the like. The userequipment may communicate with one or more core networks by using aradio access network (RAN). For example, the user equipment may be amobile phone (or referred to as a “cellular” phone) or a computer with amobile terminal. For example, the user equipment may be a portable,pocket-sized, handheld, computer built-in, or in-vehicle mobileapparatus, a terminal device in a future 5G network, or a terminaldevice in a future evolved PLMN network.

It may be further understood that in the embodiments, a network devicemay be a device for communicating with user equipment. The networkdevice may be a base transceiver station (BTS) in a GSM system or a CDMAsystem, may be a NodeB (NB) in a WCDMA system, or may be an evolvedNodeB (eNB or eNodeB) in an LTE system. Alternatively, the networkdevice may be a relay station, an access point, an in-vehicle device, awearable device, a network-side device in a future 5G network, a networkdevice in a future evolved PLMN network, or the like.

FIG. 3 is a schematic diagram of an application scenario of anembodiment. As shown in FIG. 1, multiple user equipments UEs are locatedin coverage of an eNodeB eNB. The eNodeB performs wireless communicationwith the multiple UEs. The eNB may flexibly schedule differenttransmission modes for UE 1 and UE 2 according to a service requirement,a resource status, and a scheduling status, so as to improvetransmission performance and transmission efficiency.

It may be noted that, the scenario in FIG. 3 shows only a case in whichthere is one base station (an isolated base station). However, theembodiments are not limited. There may be a neighboring base station anduser equipment that transmit a service on a same time-frequency resourceas the base station.

It may be understood that, the time-frequency resource may be generallya communications resource. For example, the time-frequency resource maybe a communications resource in a time dimension and a frequencydimension. A minimum unit of the time-frequency resource is not limited.For example, the time-frequency resource may be in a minimum unit of asubframe, a frame, or a timeslot in terms of time, and may be in aminimum unit of a subband, an entire operating band, or a subcarrier interms of frequency. A time-frequency dimension may be a resource block,a resource element, or the like.

It may be understood that for ease of description, in an embodiment, inan existing LTE system, transmission in which duration of a transmissionresource occupied by one transmission is 1 ms is referred to asnon-shortened-delay transmission (corresponding to second transmissionin this embodiment), and a 1 ms subframe is referred to as anon-shortened-delay subframe if all resources in the subframe are usedfor non-shortened-delay transmission. First transmission in thisembodiment is relative to the non-shortened-delay transmission in theLTE system. Duration of a transmission resource occupied by onetransmission of the first transmission is less than 1 millisecond inthis embodiment. The first transmission in this embodiment may bereferred to as shortened-delay transmission. One transmission (orreferred to as “single transmission”) means that a network device oruser equipment performs one time of sending or receiving on a resourceactually occupied by the first transmission in a 1 ms subframe. A 1 mssubframe may be referred to as a shortened-delay subframe if allresources in the entire subframe are used for shortened-delaytransmission or if all resources of a physical downlink shared channel(PDSCH) in the entire subframe are used for shortened-delaytransmission. However, the protection scope is not limited to this name.

The shortened-delay subframe in this embodiment may include two cases inactual use. Case 1: In a subframe, except a symbol of a control channelon which a physical downlink control channel (PDCCH) is located, allresources on another symbol in frequency domain are used forshortened-delay transmission. Case 2: In a subframe, except a symbol ofa control channel on which a PDCCH is located, some sub-bands orbandwidth on another symbol in frequency domain are used forshortened-delay transmission. A subframe in Case 1 may be referred to asa subframe dedicated for a shorten delay, and a subframe in Case 2 maybe referred to as a subframe in which some sub-bands are used for ashorten delay. During transmission in this embodiment, a type of theshortened-delay subframe may be any one of the foregoing subframes, or acombination of the two types of subframes (that is, in configuredsubframes, some subframes are dedicated for a shorten delay, and somesubframes are subframes in which some sub-bands are used for a shortendelay).

FIG. 4 is a schematic flowchart of a wireless communication methodaccording to an embodiment. The method may be performed by a networkdevice. As shown in FIG. 4, a method 1000 includes the following steps.

S1100. The network device sends resource configuration information touser equipment, where the resource configuration information is used toindicate a first transmission resource corresponding to firsttransmission, and duration of a transmission resource occupied by onetransmission of the first transmission is less than 1 millisecond.

S1200. The network device communicates with the user equipment based onthe first transmission resource.

The network device sends, to the user equipment, the resourceconfiguration information used to indicate the first transmissionresource corresponding to the first transmission and communicates withthe user equipment based on the first transmission resource. It may beunderstood that, the duration of a transmission resource occupied by onetransmission of the first transmission is less than 1 millisecond.

Based on the above, according to the wireless communication method inthis embodiment, the network device sends, to the user equipment, theresource configuration information that indicates the first transmissionresource corresponding to the first transmission and communicates withthe user equipment based on the first transmission resource. In thisway, a communication delay between the network device and the userequipment can be shortened, user experience can be improved, andperformance of a wireless network can be enhanced.

It may be understood that, in this embodiment, the network devicecommunicates with the user equipment based on the first transmissionresource may include the following cases: (1) The network deviceperforms non-shortened-delay transmission with the user equipment. (2)The network device performs shortened-delay transmission (the firsttransmission) with the user equipment. In addition, transmissionresources occupied when the network device performs shortened-delaytransmission with the user equipment are some resources in the firsttransmission resource.

In this embodiment, the network device may explicitly or implicitlyindicate, to the user equipment, configuration information of ashortened-delay subframe that is being used or to be used. For example,the network device may directly indicate a specific subframe configuredas a shortened-delay subframe; or may provide, in a predefined manner,multiple methods for configuring a shortened-delay subframe, andindicate an actually used configuration method by using signaling; ormay implicitly indicate, to the user equipment, configurationinformation of a shortened-delay subframe that is being used or to beused, this is non-limiting.

In S1100, the first transmission resource may correspond to the firsttransmission and that is indicated by the resource configurationinformation occupies, in time domain, one or more subframes in amultimedia broadcast multicast service single frequency network (MBSFN)subframe set. In a FDD mode, the MBSFN includes subframes 1, 2, 3, 6, 7,and 8. In a TDD mode, the MBSFN includes subframes 3, 4, 7, 8, and 9.Therefore, it may be ensured that user equipment without a need toperform shortened-delay transmission does not send data in ashortened-delay subframe.

As shown in FIG. 5, S1200 the following steps may be included:

S1201. Send first resource indication information to the user equipment.

S1202. Receive uplink data that is sent by the user equipment in a firstsubframe, in a radio frame, determined according to the first resourceindication information, where the first subframe in the radio frame isone of subframes occupied by the first transmission resource.

In S1201, the first resource indication information indicates a resourcethat can be used by the user equipment to perform uplink transmission ina current communication process. The user equipment determines,according to the first resource indication information, ashortened-delay subframe used for uplink transmission from the subframesoccupied by the first transmission resource, and sends the uplink datato the network device.

In S1202, the radio frame may further include a subframe used for secondtransmission, and duration of a transmission resource occupied by onetransmission of the second transmission is 1 ms. In other words, asubframe used for shortened-delay transmission and a subframe used fornon-shortened-delay transmission are in a same radio frame. The radioframe may be an FDD radio frame or a TDD radio frame. Therefore,efficiency of shortened-delay transmission can be effectively improved.

As shown in FIG. 6(a), S1200 may further include the following step:

S1203. Send feedback information to the user equipment in a secondsubframe in the radio frame, where the second subframe in the radioframe is one of the subframes occupied by the first transmissionresource, and a time interval between the second subframe in the radioframe and the first subframe in the radio frame is greater than or equalto first duration.

As shown in FIG. 6(b), S1200 may further include the following step:

S1204. Send feedback information to the user equipment in a firstsubframe in a subframe used for second transmission, where a timeinterval between the first subframe in the subframe used for the secondtransmission and the first subframe in the radio frame is greater thanor equal to second duration.

When receiving the uplink data transmitted by the user equipment in ashortened-delay subframe, the network device may send the feedbackinformation to the user equipment in a shortened-delay subframe thatmeets a delay requirement. The first duration may be any value specifiedaccording to an actual requirement. For example, the first duration maybe 0.5 ms, 1 ms, or 2 ms, or any other number, and is non-limiting.

When receiving the uplink data transmitted by the user equipment in ashortened-delay subframe, the network device may send the feedbackinformation to the user equipment in the first subframe in the subframethat is used for the second transmission and that meets a delayrequirement. The second duration may be any value specified according toan actual requirement. For example, the second duration may be 0.5 ms, 1ms, or 2 ms, or any other number, and is non-limiting.

That is, when the network device receives the uplink data sent by theuser equipment in a shortened-delay subframe, the network device maysend the feedback information to the user equipment in a shortened-delaysubframe that meets the delay requirement, or may send the feedbackinformation to the user equipment in a non-shortened-delay subframe thatmeets the delay requirement, or may choose, by determining a delaylength, whether to use a shortened-delay subframe or anon-shortened-delay subframe to send the feedback information to theuser equipment. This is not limited.

The network device may send the feedback information to the userequipment in the second subframe in the radio frame when determiningthat a transmission delay for sending the feedback information in thesecond subframe in the radio frame is less than or equal to atransmission delay for sending the feedback information in the firstsubframe in the subframe used for the second transmission; or

when determining that a transmission delay for sending the feedbackinformation in the second subframe in the radio frame is greater than atransmission delay for sending the feedback information in the firstsubframe in the subframe used for the second transmission, the networkdevice sends the feedback information to the user equipment in the firstsubframe in the subframe used for the second transmission.

In an embodiment, optionally, when sending, to the user equipment,feedback information indicating that the uplink data is unsuccessfullyreceived, the network device may receive, at an interval of thirdduration from a moment at which the feedback information is sent,retransmission data sent by the user equipment. The third duration maybe any value specified according to an actual requirement. For example,in an existing LTE protocol, the third duration is 4 ms in FDD, and isnot less than 4 ms in TDD, this is non-limiting.

Based on the above, according to the wireless communication method inthis embodiment, when the network device sends, to the user equipment,the feedback information that is specific to the uplink data and thatindicates that the data sent by the user equipment is unsuccessfullyreceived, the user equipment may select a subframe that meets atransmission delay requirement, to transmit the retransmission data. Inthis way, a delay in a communication process can be shortened, and userexperience can be improved.

In this embodiment, optionally, when the network device sends, to theuser equipment, feedback information indicating that the uplink data isunsuccessfully received, the network device may receive, in a thirdsubframe in the radio frame, retransmission data sent by the userequipment. The third subframe in the radio frame is one of the subframesoccupied by the first transmission resource. A time interval between thethird subframe in the radio frame and a subframe used by the networkdevice to send the feedback information is greater than or equal tofourth duration. The fourth duration may be any value specifiedaccording to an actual requirement. For example, the fourth duration maybe 1 ms or 2 ms. The network device may send the feedback information tothe user equipment in a subframe used for shortened-delay transmission,where the subframe is at a minimum time interval with the subframe usedby the network device to send the feedback information, and the timeinterval is greater than or equal to the fourth duration.

It may be understood that, in this embodiment, the feedback informationis information used by the network device to indicate whether thenetwork device successfully receives the data sent by the userequipment. For example, when the network device successfully receivesthe data sent by the user equipment, the feedback information may be ACKinformation in an existing LTE system. When the network deviceunsuccessfully receives the data sent by the user equipment, thefeedback information may be NACK information in the existing LTE system.

A wireless communication method in the embodiments is described belowwith reference to the embodiments. It may be understood that theseexamples are merely intended to help a person of ordinary skill in theart better understand the embodiments, but are non-limiting.

FIG. 7(a) shows a wireless communication method according to anotherembodiment. As shown in FIG. 7(a), a dark-colored subframe represents asubframe configured as a shortened-delay subframe, and a light-coloredsubframe is a non-shortened-delay subframe in LTE. A method 2000 mayinclude the following steps:

S2001. A base station sends downlink control information (DCI) to userequipment in a shortened-delay subframe 2.

S2002. The base station receives, in a shortened-delay subframe 3,uplink data sent by the user equipment.

S2003. The base station sends, in a shortened-delay subframe 6, feedbackinformation specific to the uplink data to the user equipment.

S2004. The base station receives, in a shortened-delay subframe 7,retransmission data sent by the user equipment.

Based on the above, according to the wireless communication method inthis embodiment, shortened-delay transmission (uplink transmission anddownlink transmission) is performed only in a shortened-delay subframeconfigured by the base station. In this way, a shortened-delay subframeand a non-shortened-delay subframe are distinguished, and the userequipment can select an appropriate transmission resource withoutperforming complex determining when the user equipment performsshortened-delay transmission, thereby improving user experience.

In shortened-delay transmission, a minimum time interval betweeninformation receiving and information sending may be set to 1 ms. Asshown in FIG. 7(b), under a time constraint, S2003 may be: the basestation sends feedback information to the user equipment in anon-shortened-delay subframe 4.

Correspondingly, S2004 may be: the base station receives, in ashortened-delay subframe 8, retransmission data sent by the userequipment.

Alternatively, as shown in FIG. 7(c), S2004 may be: the base stationreceives, in a shortened-delay subframe 6, retransmission data sent bythe user equipment.

The base station may further select, according to transmission delayscorresponding to different transmission modes, a subframe for sendingthe feedback information. For example, if the feedback information issent to the user equipment in a manner shown in FIG. 7(a), atransmission delay in an entire transmission process is 5 ms; if thefeedback information is sent to the user equipment in a manner shown inFIG. 7(b), a transmission delay in an entire transmission process is 6ms. In this case, the base station may choose to send the feedbackinformation to the user equipment in the manner shown in FIG. 7(a).

In summary, as shown in FIG. 7(b), if the user equipment sends uplinkservice channel data in a shortened-delay subframe n, the base stationmay send, in a non-shortened-delay subframe n+1 neighboring to theshortened-delay subframe n, feedback information or schedulinginformation for retransmission, which is corresponding to the uplinkservice channel data. Then, the user equipment sends an uplink servicechannel retransmission packet in a subframe n+1+k0, and the subframe isnot limited to a shortened-delay subframe. Duration corresponding to k0is 4 ms in FDD, and is not less than 4 ms in TDD. That is, at a subframeboundary, if feedback from the base station is sent in anon-shortened-delay subframe, the user equipment may send uplink data ina subframe following the non-shortened-delay subframe.

Alternatively, as shown in FIG. 7(c), if the user equipment sends uplinkservice channel data in a shortened-delay subframe n, the base stationmay send, in a non-shortened-delay subframe n+1 neighboring to theshortened-delay subframe n, feedback information or schedulinginformation for retransmission, which corresponds to the uplink servicechannel data. The user equipment selects a shortened-delay subframe froma set of shortened-delay subframes to send uplink data, and an intervalbetween the subframe n+1 and each of the shortened-delay subframes isnot less than k1. A value of k1 may be set according to an actualrequirement or a processing capability of a receiver. For example, k1may be set to 1 ms or 2 ms. That is, at a subframe boundary, if feedbackfrom the base station is sent in a non-shortened-delay subframe, theuser equipment sends uplink data in a shortened-delay subframe, and atime interval between the shortened-delay subframe and thenon-shortened-delay subframe meets a processing time requirement.

If the base station sends a feedback and retransmitted configurationinformation in a non-shortened-delay subframe, the user equipment maycompare delays corresponding to different transmission methods, andselect a method with a minimum delay to send uplink data. Alternatively,the base station may directly indicate, by using signaling, a specificmanner or subframe used by the user equipment to transmit uplink data.

Based on the above, according to the wireless communication method inthis embodiment, the network device may send, to the user equipment, theresource configuration information that indicates the first transmissionresource corresponding to the first transmission, and communicates withthe user equipment based on the first transmission resource. In thisway, a communication delay between the network device and the userequipment can be shortened, user experience can be improved, andperformance of a wireless network can be enhanced.

As shown in FIG. 8, S1200 may include the following steps:

S1205. Send second resource indication information to the user equipmentto enable the user equipment to receive downlink data in a firstsubframe that is determined according to the second resource indicationinformation, where the first subframe is one of subframes occupied bythe first transmission resource.

S1206. Send the downlink data to the user equipment in the firstsubframe.

When the network device needs to send the downlink data to the userequipment, the network device may send the second resource indicationinformation to the user equipment. The user equipment may determine,according to the second resource indication information, ashortened-delay subframe used by the network device to send the downlinkdata, and receive, in the shortened-delay subframe, the downlink datasent by the network device.

It may be understood that, in a downlink transmission process, thenetwork device needs to indicate, to the user equipment in anon-shortened-delay subframe, a retransmission redundancy version (RV)and a process number of a non-shorten delay hybrid automatic repeatrequest (HARM) that are corresponding to the non-shortened-delaysubframe, so that the user equipment identifies, from two differenttypes of subframes, different retransmission packets of a same datapacket, so as to receive and combine the retransmission packets.

As shown in FIG. 9, S1200 may include the following steps:

S1207. Send configuration information to the user equipment.

S1208. Receive a DMRS that is sent by the user equipment on atransmission resource in the first transmission resource according tothe configuration information.

In S1207, the configuration information may include at least one of thefollowing information: indication information used to indicate alocation of a time domain symbol used by the user equipment to generatethe DMRS, indication information used to indicate a frequency domainlocation at which the user equipment generates the DMRS, or indicationinformation used to indicate transmit power for sending the DMRS by theuser equipment.

In this embodiment, optionally, different user equipments may use DMRSson different time domain symbols in a time division multiplexing manner,so that the network device can receive a DMRS signal.

In this embodiment, optionally, user equipment that is neighboring interms of time domain may share a same time-frequency resource to use aDMRS. In this case, to distinguish between DMRSs of different userequipment, the network device needs to send signaling to the userequipment, so as to indicate transmit power for sending a DMRS by theuser equipment.

In this embodiment, optionally, user equipment that is neighboring interms of time domain resource may use a same time domain symbol togenerate a DMRS, and DMRSs of different user equipment on the same timedomain symbol are mapped onto different subcarriers in frequency domain.

As shown in FIG. 10, S1200 may include the following steps:

S1209. Send uplink control channel resource indication information tothe user equipment, where the uplink control channel resource indicationinformation indicates a time domain symbol location and a frequencydomain location in a first subframe, the time symbol domain location andthe frequency domain being both for an uplink control channel related tothe first transmission, and the first subframe is one of subframesoccupied by the first transmission resource.

S1210. Receive, in the first subframe, uplink control information thatis related to the first transmission and that is sent by the userequipment according to the uplink control channel resource indicationinformation.

In S1209, the uplink control channel resource indication informationindicates that in a 1 ms subframe, an uplink control channel related toshortened-delay transmission occupies two separate sub-bands obtained bydividing a part except non-shorten delay PUCCH bandwidth, and uplinkcontrol channels of different user equipments occupy some subcarriers ofsome symbols. In addition, resources for the uplink control channels ofthe different user equipment are placed in REs on the two sub-bands in asame or symmetrical order.

Further, an uplink control channel (for example, a PUCCH) in ashortened-delay subframe occupies a resource on a subband by means ofoccupation first in frequency domain and then in time domain.

Further, resources of uplink control channels (for example, PUCCHs) ofall user equipment may occupy a same symbol on two sub-bands.

Based on the above, according to the wireless communication method inthis embodiment, both an uplink control channel related toshortened-delay transmission and an uplink control channel related tonon-shortened-delay transmission can exist in a same radio frame, andthe uplink control channel related to shortened-delay transmissionoccupies a resource on a subband by means of occupation first infrequency domain and then in time domain, so that time domain resourcesoccupied by an uplink control channel can be reduced.

With reference to FIG. 4 to FIG. 10, a wireless communication method inan embodiment is described in detail on a network device side above, andwith reference to FIG. 11 to FIG. 17, a wireless communication method instill another embodiment is described in detail on a user equipment sidebelow. It may be understood that, interaction between user equipment anda network device, related features, related functions, and the like thatare described on the network device side are corresponding to thosedescribed on the user equipment side. For brevity, repeated descriptionis appropriately omitted.

FIG. 11 is a schematic flowchart of a wireless communication methodaccording to still another embodiment. The method may be performed byuser equipment. As shown in FIG. 11, a method 3000 may include thefollowing steps:

S3100. The user equipment receives resource configuration informationsent by a network device, where the resource configuration informationis used to indicate a first transmission resource corresponding to firsttransmission, and duration of a transmission resource occupied by onetransmission of the first transmission is less than 1 millisecond.

S3200. The user equipment communicates with the network device based onthe first transmission resource.

The user equipment receives the resource configuration information thatis sent by the network device and that is used to indicate the firsttransmission resource corresponding to the first transmission andcommunicates with the network device based on the first transmissionresource. It may be understood that the duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond.

Based on the above, according to the wireless communication method inthis embodiment, the user equipment may receive the resourceconfiguration information that is sent by the network device and that isused to indicate the first transmission resource corresponding to thefirst transmission, and communicates with the network device based onthe first transmission resource. In this way, a communication delaybetween the network device and the user equipment can be shortened, userexperience can be improved, and performance of a wireless network can beenhanced.

In S3100, the first transmission resource may occupy, in time domain,one or more subframes in a MBSFN subframe set.

As shown in FIG. 12, S3200 may include the following steps:

S3201. Receive first resource indication information sent by the networkdevice.

S3202. Send uplink data to the network device in a first subframe, in aradio frame, determined according to the first resource indicationinformation, where the first subframe in the radio frame is one ofsubframes occupied by the first transmission resource.

In S3202, the radio frame may further include a subframe used for secondtransmission. Duration of a transmission resource occupied by onetransmission of the second transmission is 1 ms.

As shown in FIG. 13(a), the method 3000 may further include thefollowing step:

S3300. Receive, in a second subframe in the radio frame, feedbackinformation sent by the network device, where the second subframe in theradio frame is one of the subframes occupied by the first transmissionresource, and a time interval between the second subframe in the radioframe and the first subframe in the radio frame is greater than or equalto first duration.

As shown in FIG. 13(b), the method 3000 may further include thefollowing step:

S3400. Receive, in a first subframe in a subframe used for secondtransmission, feedback information sent by the network device, where atime interval between the first subframe in the subframe used for thesecond transmission and the first subframe in the radio frame is greaterthan or equal to second duration.

As shown in FIG. 14(a), when the user equipment receives feedbackinformation that is sent by the network device and that indicates thatthe network device unsuccessfully receives the uplink data, the method3000 may further include the following step:

S3500. Send retransmission data to the network device at an interval ofthird duration from a moment at which the feedback information isreceived.

As shown in FIG. 14(b), the method 3000 may further include thefollowing step:

S3600. Send retransmission data to the network device in a thirdsubframe in the radio frame, where the third subframe in the radio frameis one of the subframes occupied by the first transmission resource, anda time interval between the third subframe in the radio frame and asubframe used by the user equipment to receive the feedback informationis greater than or equal to fourth duration.

S3500 may include: when the third duration is less than the timeinterval between the third subframe in the radio frame and the subframeused by the user equipment to receive the feedback information, sendingthe retransmission data to the network device at the interval of thethird duration from the moment at which the feedback information isreceived.

S3600 may include: sending the retransmission data to the network devicein the third subframe in the radio frame when the third duration isgreater than or equal to the time interval between the third subframe inthe radio frame and the subframe used by the user equipment to receivethe feedback information.

As shown in FIG. 15, S3200 may include the following steps:

S3203. Receive second resource indication information sent by thenetwork device.

S3204. Receive, in a first subframe that is determined according to thesecond resource indication information, downlink data sent by thenetwork device, where the first subframe is one of subframes occupied bythe first transmission resource.

As shown in FIG. 16, S3200 may include the following steps:

S3205. Receive configuration information sent by the network device.

S3206. Send a DMRS to the network device on a transmission resource inthe first transmission resource according to the configurationinformation.

In S3205, the configuration information may include at least one of thefollowing information: indication information used to indicate alocation of a time domain symbol used by the user equipment to generatethe DMRS, indication information used to indicate a frequency domainlocation at which the user equipment generates the DMRS, or indicationinformation used to indicate transmit power for sending the DMRS by theuser equipment.

As shown in FIG. 17, S3200 may include the following steps:

S3207. Receive uplink control channel resource indication informationsent by the network device, where the uplink control channel resourceindication information indicates a time domain symbol location and afrequency domain location in a first subframe, the time symbol domainlocation and the frequency domain being both for an uplink controlchannel related to the first transmission, and the first subframe is oneof subframes occupied by the first transmission resource.

S3208. Send, in the first subframe according to the uplink controlchannel resource indication information, uplink control informationrelated to the first transmission to the network device.

Based on the above, according to the wireless communication method inthis embodiment, the user equipment may receive the resourceconfiguration information that is sent by the network device and that isused to indicate the first transmission resource corresponding to thefirst transmission, and communicates with the network device based onthe first transmission resource. In this way, a communication delaybetween the network device and the user equipment can be shortened, userexperience can be improved, and performance of a wireless network can beenhanced.

With reference to FIG. 18, a wireless communication method in stillanother embodiment is described in detail below. The method may beperformed by a network device. As shown in FIG. 18, a method 4000 mayinclude the following steps:

S4100. The network device sends configuration information to userequipment.

S4200. The network device receives a DMRS that is generated according tothe configuration information and that is sent by the user equipment,where all time domain symbols included in a subframe in which a timedomain symbol used by the user equipment to generate the DMRS is locatedare allocated to M user equipment, and M is an integer not less than 2.

After sending, to the user equipment, the configuration information usedby the user equipment to generate the DMRS, the network device mayreceive the DMRS that is generated by the user equipment according tothe configuration information, and all the time domain symbols includedin the subframe in which the time domain symbol used by the userequipment to generate the DMRS is located are allocated to at least twouser equipment.

Based on the above, according to the wireless communication method inthis embodiment, all the time domain symbols included in the subframe inwhich the time domain symbol is located are allocated to at least twouser equipment, where the time domain symbol is used by the userequipment to generate the DMRS according to the configurationinformation sent by the network device. Therefore, an unnecessary delayin shortened-delay transmission can be avoided, and interference betweenDMRSs of different user equipment can be reduced.

It may be understood that, in this embodiment, all time domain symbolsin a subframe are allocated to at least two user equipment. That is,each user equipment performs shortened-delay transmission in thesubframe.

In this embodiment, the DMRS may be mapped, at intervals of Nsubcarriers, onto a subcarrier on a frequency domain resourcecorresponding to the time domain symbol used by the user equipment togenerate the DMRS, where N is a positive integer. That is, the DMRS doesnot need to consecutively occupy all frequency domain subcarriers ofbandwidth in which a PUCCH is located.

N may be a total quantity of time domain symbols occupied by all DMRSsin the subframe in which the time domain symbol used by the userequipment to generate the DMRS is located.

In this embodiment, at least two of the M user equipment may usedifferent time domain symbols to generate a DMRS. However, locations ofsubcarriers in frequency domain that are occupied by all of the M userequipment may be the same or may be different.

For example, as shown in FIG. 19(a), a 0.5 ms timeslot includes sevenuplink symbols. It may be assumed that the symbols are sequentiallynumbered 0 to 6 from left to right. The symbols support two userequipment n performing uplink shorten delay sending, and there are twoDMRS symbols. A time domain resource on which each user equipment islocated may include one DMRS symbol. user equipment 1 occupies symbols0, 1, and 2, and user equipment 2 occupies symbols 3, 4, 5, and 6. ADMRS of the user equipment 1 is in the symbol 1, and a DMRS symbol ofthe user equipment 2 is in the symbol 4. To reduce DMRS overheads in ashorten delay transmission, a DMRS used by the user equipment 1 and theuser equipment 2 occupies one subcarrier at intervals of twosubcarriers. In this way, the DMRS overheads are the same as DMRSoverheads in a non-shorten delay transmission. Further, a quantity ofresource elements of a DMRS included in each physical resource block(PRB) is reduced by half. Therefore, in order not to affect performanceof a DMRS sequence in frequency domain, resources allocated for ashorten delay transmission are at least two PRBs.

Further, as shown in FIG. 19(b), locations of the two user equipment maybe staggered in frequency domain. A location of the DMRS of the userequipment 1 in the frequency domain is different from a location of theDMRS of the user equipment 2 in the frequency domain.

Still further, as shown in FIG. 19(c), a 0.5 ms timeslot may includethree DMRSs, and locations of the three DMRSs in frequency domain may bethe same or different. The three DMRSs may be allocated to no more thanthree user equipment (including various cases such as one userequipment, two user equipment, and three user equipment) to performshortened-delay transmission. In addition, in time domain symbol onwhich each DMRS is located, there is one DMRS at intervals of threesubcarriers. Bandwidth allocated in the frequency domain may be amultiple of three PRBs.

Based on the above, according to the wireless communication method inthis embodiment, different user equipment use DMRSs on different symbolsin a time division multiplexing (TDM) manner. In this way, additionaloverheads can be avoided in a shortened-delay transmission process, andDMRSs are used and distinguished in uplink sending, so as to facilitatesending and receiving that is performed by the network device.

In this embodiment, optionally, the M user equipment may include atleast two user equipment that are neighboring in terms of time domainresource, and all of the at least two user equipment that areneighboring in terms of time domain resource use a same time domainsymbol to generate a DMRS. In addition, DMRSs generated by all the userequipment may be mapped onto a same subcarrier or different subcarriersin frequency domain.

As shown in FIG. 20(a), user equipment 1 and user equipment 2 maygenerate a DMRS on a same time domain symbol, where the DMRSs are mappedonto a same subcarrier. For the network device, there may be two methodsfor distinguishing a DMRS of the user equipment 1 from a DMRS of theuser equipment 2. Exemplary methods are as follows:

Method 1: The DMRSs are not distinguished, that is, the user equipment 1and the user equipment 2 use an exactly same DMRS, and the DMRSs includea same time-frequency resource and a same sequence. This method isimplemented on the premise that the user equipment 1 and the userequipment 2 are QCL. QCL means that on an eNodeB eNB side, over-the-airtransmission channel parameters (including multipath delay distribution,a Doppler offset value, a transmission delay, and the like) from theuser equipment 1 and the user equipment 2 to the eNB side are the sameor approximately the same. Therefore, the user equipment 1 and the userequipment 2 may share the same DMRS without performing distinguishing.Further, because the two user equipment share an exactly same DMRSresource, a value of transmit power used when the two user equipmentsend DMRSs needs to be indicated by using signaling, so as to ensurethat an excessively high power superposition value is not generatedafter the DMRSs sent by the two user equipment are superposed on the eNBside. A transmit power value of a DMRS may be indicated by using anabsolute value, or may be indicated by using a power deviation valuebetween transmit power of the DMRS and that of a particular referencesignal or that of uplink data to be sent on the DMRS.

Method 2: The DMRSs may be distinguished from each other, that is, theuser equipment 1 and the user equipment 2 use different DMRSs. The DMRSsinclude a same time-frequency resource and different DMRS sequences, andmay optionally include different transmit power values. The userequipment 1 and the user equipment 2 use different DMRS sequences, thatis, the user equipment 1 and the user equipment 2 send respective DMRSsin a code division manner. Further, different transmit power may beallocated to the DMRSs of the user equipment 1 and the user equipment 2,and on an eNB side, a deviation value between transmit power of the DMRSof the user equipment 1 and that of the DMRS of the user equipment 2needs to be relatively large. Therefore, DMRSs sent by the two userequipment are separately obtained by means of parsing by using aninterference message technology. A transmit power value of a DMRS may beindicated by using an absolute value, or may be indicated by using apower deviation value between transmit power of the DMRS and that of aparticular reference signal or that of uplink data to be sent on theDMRS.

As shown in FIG. 20(b), user equipment 1 and user equipment 2 maygenerate a DMRS on a same time domain symbol, and DMRSs are mapped ontodifferent subcarriers. In other words, frequency division multiplexing(FDM) is performed on the DMRSs on one symbol. Further, on differentuser equipment sides, data may not be sent on a non-DMRS subcarrier in aDMRS symbol. For example, the user equipment 1 may use symbols 0 and 1,where on a DMRS symbol of the symbol 1, a DMRS sequence is placed on asubcarrier with an even number (0, 2, 4, or the like), and a subcarrierwith an odd number is vacated without being placed any data or referencesignal. Similarly, a case is the same for the user equipment 2. The userequipment 2 uses symbols 1 and 2, where on a DMRS symbol of the symbol1, a DMRS sequence is placed on a subcarrier with an odd number (1, 3,5, or the like), and a subcarrier with an even number is vacated withoutbeing placed any data or reference signal.

In this method, although the user equipment 1 and the user equipment 2share a time domain symbol of a DMRS, the user equipment 1 and the userequipment 2 use different subcarriers in this symbol, and a non-DMRSsubcarrier is vacated. Therefore, DMRSs are generated in frequencydomain orthogonal manner.

Based on the above, according to the wireless communication method inthis embodiment, DMRSs of different user equipment that are neighboringin terms of time domain resource are completely time-frequencyorthogonal, so that better communication performance can be ensured.

In this embodiment, if user equipment that are neighboring in terms oftime domain resource use a same symbol to generate a DMRS, then DMRSsgenerated by different user equipment on this symbol may be mapped ontoa same subcarrier in frequency domain. As shown in FIG. 21, the method4000 may further include the following step:

S4300. The network device sends DMRS transmit power indicationinformation to the user equipment.

Correspondingly, S4200 may be: the network device receives the DMRS thatis sent by the user equipment according to the DMRS transmit powerindication information.

After the network device sends the DMRS transmit power indicationinformation to the user equipment, the user equipment may generate theDMRS on a time-frequency resource stipulated in a standard or atime-frequency resource that is agreed on in advance by the userequipment and the network device, and send the generated DMRS accordingto transmit power indicated by the DMRS transmit power indicationinformation.

In S4300, the DMRS transmit power indication information may be used toindicate transmit power used when the user equipment sends the DMRS.Optionally, the DMRS transmit power indication information may directlyindicate a value of the transmit power used for sending the DMRS, or mayindicate a power deviation value between transmit power used for sendingthe DMRS and transmit power of a particular reference signal, or mayindicate a power deviation value between transmit power used for sendingthe DMRS and transmit power of data corresponding to the DMRS. This isnot limited.

Based on the above, according to the wireless communication method inthis embodiment, all the time domain symbols included in the subframe inwhich the time domain symbol is located are allocated to at least twouser equipment, where the time domain symbol is used by the userequipment to generate the DMRS according to the configurationinformation sent by the network device. Therefore, an unnecessary delayin shortened-delay transmission can be avoided, and interference betweenDMRSs of different user equipment can be reduced.

With reference to FIG. 18 to FIG. 21, a wireless communication method instill another embodiment described in detail on a network device sideabove, and with reference to FIG. 22 and FIG. 23, a wirelesscommunication method in still another embodiment described in detail ona user equipment side below. It may be understood that, interactionbetween user equipment and a network device, related features, relatedfunctions, and the like that are described on the network device sideare corresponding to those described on the user equipment side. Forbrevity, repeated description is appropriately omitted.

FIG. 22 is a schematic flowchart of a wireless communication methodaccording to still another embodiment. The method may be performed byuser equipment. As shown in FIG. 22, a method 5000 may include thefollowing steps:

S5100. The user equipment receives configuration information sent by anetwork device.

S5200. The user equipment generates a demodulation reference signal DMRSaccording to the configuration information, where all time domainsymbols included in a subframe in which a time domain symbol used togenerate the DMRS is located are allocated to M user equipment, and M isan integer not less than 2.

S5300. The user equipment sends the DMRS to the network device.

After receiving the configuration information sent by the networkdevice, the user equipment may generate the DMRS according to theconfiguration information, and send the DMRS to the network device. Allthe time domain symbols included in the subframe in which the timedomain symbol used by the user equipment to generate the DMRS is locatedare allocated to at least two user equipment.

Based on the above, according to the wireless communication method inthis embodiment, all the time domain symbols included in the subframe inwhich the time domain symbol is located are allocated to at least twouser equipment, where the time domain symbol is used by the userequipment to generate the DMRS according to the configurationinformation sent by the network device. Therefore, an unnecessary delayin shortened-delay transmission can be avoided, and interference betweenDMRSs of different user equipment can be reduced.

In this embodiment, the DMRS may be mapped, at intervals of Nsubcarriers, onto a subcarrier on a frequency domain resourcecorresponding to the time domain symbol used to generate the DMRS, whereN is a positive integer.

In this embodiment, N may be a total quantity of time domain symbolsoccupied by all DMRSs in the subframe in which the time domain symbolused to generate the DMRS is located.

In this embodiment, at least two of the M user equipment may usedifferent time domain symbols to generate a DMRS.

In this embodiment, the M user equipment may include at least two userequipment that are neighboring in terms of time domain resource, and allof the at least two user equipment that are neighboring in terms of timedomain resource use a same time domain symbol to generate a DMRS.

In this embodiment, DMRSs generated by all the user equipment may bemapped onto different subcarriers in frequency domain.

In this embodiment, DMRSs generated by all the user equipment may bemapped onto a same subcarrier in frequency domain. As shown in FIG. 23,the method may further include the following step:

S5400. The user equipment receives DMRS transmit power indicationinformation sent by the network device.

Correspondingly, S5300 may be: the user equipment sends the DMRS to thenetwork device according to the DMRS transmit power indicationinformation.

Based on the above, according to the wireless communication method inthis embodiment, all the time domain symbols included in the subframe inwhich the time domain symbol is located are allocated to at least twouser equipment, where the time domain symbol is used by the userequipment to generate the DMRS according to the configurationinformation sent by the network device. Therefore, an unnecessary delayin shortened-delay transmission can be avoided, and interference betweenDMRSs of different user equipment can be reduced.

FIG. 24 is a schematic flowchart of a wireless communication methodaccording to still another embodiment. The method may be performed by anetwork device. As shown in FIG. 24, a method 6000 may include thefollowing steps:

S6100. The network device sends resource indication information to userequipment, where the resource indication information is used to indicatea resource occupied by an uplink control channel related to firsttransmission, and duration of occupying a resource by one transmissionof the first transmission is less than 1 ms.

S6200. The network device receives uplink control information that isrelated to the first transmission and that is sent by the user equipmenton the resource occupied by the uplink control channel.

The network device may send, to the user equipment, the resourceindication information that indicates the resource occupied by theuplink control channel related to the first transmission, and receivesthe uplink control information that is related to the first transmissionand that is sent by the user equipment on the resource occupied by theuplink control channel. The duration of occupying a resource by onetransmission of the first transmission is less than 1 ms.

Based on the above, according to the wireless communication method inthis embodiment, the network device may send, to the user equipment, theresource indication information of the resource occupied by the uplinkcontrol channel related to the first transmission, and receives theuplink control information that is related to the first transmission andthat is sent by the user equipment on the resource occupied by theuplink control channel. Because the duration of occupying a resource byone transmission of the first transmission is less than 1 ms, atransmission delay can be shortened, user experience can be improved,and network performance can be enhanced.

In S6100, the resource indication information may include informationabout a number of a subframe in which the resource occupied by theuplink control channel related to the first transmission is locatedand/or information about a time domain symbol location and a frequencydomain location in a subframe that are corresponding to the resourceoccupied by the uplink control channel related to the firsttransmission.

In this embodiment, the resource indication information indicates thatthe resource occupied by the uplink control channel is Fm firstsubcarriers on a first subband and Fn second subcarriers on a secondsubband, the first subband and the second subband are in bandwidthoccupied by a physical uplink shared channel (PUSCH) in a firstsubframe, and are separated in frequency domain, where Fm and Fn arepositive integers.

Based on the above, according to the wireless communication method inthis embodiment, both an uplink control channel related toshortened-delay transmission and an uplink control channel related tonon-shortened-delay transmission can exist in a same radio frame, andthe uplink control channel related to shortened-delay transmissionoccupies a resource on a subband by means of occupation first infrequency domain and then in time domain, so that time domain resourcesoccupied by an uplink control channel can be reduced.

In this embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In this embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband may be the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

For example, as shown in FIG. 25, in a 1 ms subframe, an uplink controlchannel related to shortened-delay transmission occupies two separatesub-bands obtained by dividing a part except non-shorten delay PUCCHbandwidth, and uplink control channels of different user equipmentoccupy some subcarriers of some symbols. In addition, resources for theuplink control channels of the different user equipment are placed inREs on the two sub-bands in a same or symmetrical order. Symmetricalplacement may be as follows: In FIG. 25, user equipment 1 is in ahigh-frequency subcarrier part of a subband 1, and in a low-frequencysubcarrier part of a subband 2. Alternatively, placement in a same orderis as follows: In FIG. 25, user equipment 2 is in a low-frequencysubcarrier part of a subband 1, and in a low-frequency subcarrier partof a subband 2. That is, two shorten delay PUCCHs are separately sent onthe subband 1 and the subband 2.

In this embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

Based on the above, according to the wireless communication method inthis embodiment, the network device sends, to the user equipment, theresource indication information of the resource occupied by the uplinkcontrol channel related to the first transmission, and receives theuplink control information that is related to the first transmission andthat is sent by the user equipment on the resource occupied by theuplink control channel. Because the duration of occupying a resource byone transmission of the first transmission is less than 1 ms, atransmission delay can be shortened, user experience can be improved,and network performance can be enhanced.

With reference to FIG. 24 and FIG. 25, a wireless communication methodin still another embodiment is described in detail on a network deviceside above, and with reference to FIG. 26 to FIG. 28, a wirelesscommunication method in still another embodiment is described in detailon a user equipment side below. It may be understood that, interactionbetween user equipment and a network device, related features, relatedfunctions, and the like that are described on the network device sideare corresponding to those described on the user equipment side. Forbrevity, repeated description is appropriately omitted.

FIG. 26 is a schematic flowchart of a wireless communication methodaccording to still another embodiment. The method may be performed byuser equipment. As shown in FIG. 26, a method 7000 may include thefollowing steps:

S7100. The user equipment obtains a resource occupied by an uplinkcontrol channel related to first transmission, where duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms.

S7200. The user equipment sends, on the resource occupied by the uplinkcontrol channel related to the first transmission, uplink controlinformation related to the first transmission to a network device.

The user equipment may obtain the resource occupied by the uplinkcontrol channel related to the first transmission, and sends, on theresource, the uplink control information related to the firsttransmission to the network device. The duration of occupying a resourceby one transmission of the first transmission is less than 1 ms.

Based on the above, according to the wireless communication method inthis embodiment, the user equipment obtains the resource occupied by theuplink control channel related to the first transmission, and sends, onthe resource, the uplink control information related to the firsttransmission to the network device. Because the duration of occupying aresource by one transmission of the first transmission is less than 1ms, a transmission delay can be shortened, user experience can beimproved, and network performance can be enhanced.

In this embodiment, the user equipment may obtain, according to a presetprotocol, the resource occupied by the uplink control channel related tothe first transmission, or may obtain, by receiving signaling sent bythe network device, the resource occupied by the uplink control channelrelated to the first transmission.

In this embodiment, as shown in FIG. 27, the method 7000 may furtherinclude the following step:

S7300. The user equipment receives resource indication information sentby the network device.

Correspondingly, S7100 may include: obtaining, according to the resourceindication information, the resource occupied by the uplink controlchannel related to the first transmission.

In S7300, the resource indication information may include informationabout a number of a subframe in which the resource occupied by theuplink control channel related to the first transmission is locatedand/or information about a time domain symbol location and a frequencydomain location in a subframe that are corresponding to the resourceoccupied by the uplink control channel related to the firsttransmission.

In S7300, the resource indication information may indicate that theresource occupied by the uplink control channel related to the firsttransmission is Fm first subcarriers on a first subband and Fn secondsubcarriers on a second subband, the first subband and the secondsubband are in bandwidth occupied by a physical uplink shared channel(PUSCH) in a first subframe, and are separated in frequency domain, andFm and Fn are positive integers.

Based on the above, according to the wireless communication method inthis embodiment, both an uplink control channel related toshortened-delay transmission and an uplink control channel related tonon-shortened-delay transmission can exist in a same radio frame, andthe uplink control channel related to shortened-delay transmissionoccupies a resource on a subband by means of occupation first infrequency domain and then in time domain, so that time domain resourcesoccupied by an uplink control channel can be reduced.

In this embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In this embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband may be the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

In this embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

As shown in FIG. 28, S7200 may include the following steps:

S7201. Map the uplink control information onto the first subband and thesecond subband by means of mapping first in frequency domain and then intime domain.

S7202. Send, on the first subband and the second subband, the uplinkcontrol information related to the first transmission to the networkdevice.

Based on the above, according to the wireless communication method inthis embodiment, the user equipment may obtain the resource occupied bythe uplink control channel related to the first transmission, and send,on the resource, the uplink control information related to the firsttransmission to the network device. Because the duration of occupying aresource by one transmission of the first transmission is less than 1ms, a transmission delay can be shortened, user experience can beimproved, and network performance can be enhanced.

With reference to FIG. 29, a network device in an embodiment isdescribed in detail below. As shown in FIG. 29, a network device 10 mayinclude:

a transceiver module 11, configured to send resource configurationinformation to user equipment, where the resource configurationinformation is used to indicate a first transmission resourcecorresponding to first transmission, and duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond; and

a processing module 12, configured to control the transceiver module 11to communicate with the user equipment based on the first transmissionresource.

The network device sends, to the user equipment, the resourceconfiguration information used to indicate the first transmissionresource corresponding to the first transmission and communicates withthe user equipment based on the first transmission resource. It may beunderstood that the duration of a transmission resource occupied by onetransmission of the first transmission is less than 1 millisecond.

Based on the above, the network device for wireless communication inthis embodiment may send, to the user equipment, the resourceconfiguration information that indicates the first transmission resourcecorresponding to the first transmission, and communicate with the userequipment based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

It may be understood that, in this embodiment, a receiving operationperformed by the transceiver module 11 may be performed by a receivingmodule with a receiving function, and a sending operation performed bythe transceiver module 11 may be performed by a sending module with asending function.

In this embodiment, the first transmission resource occupies, in timedomain, one or more subframes in a MBSFN subframe set.

In this embodiment, that the processing module 12 controls thetransceiver module 11 to communicate with the user equipment based onthe first transmission resource may include:

controlling the transceiver module 11 to send first resource indicationinformation to the user equipment; and

controlling the transceiver module 12 to receive uplink data that issent by the user equipment in a first subframe, in a radio frame,determined according to the first resource indication information, wherethe first subframe in the radio frame is one of subframes occupied bythe first transmission resource.

In this embodiment, the radio frame may further include a subframe usedfor second transmission. Duration of a transmission resource occupied byone transmission of the second transmission may be 1 ms.

In this embodiment, the transceiver module 11 may be further configuredto: send feedback information to the user equipment in a second subframein the radio frame, where the second subframe in the radio frame is oneof the subframes occupied by the first transmission resource, and a timeinterval between the second subframe in the radio frame and the firstsubframe in the radio frame is greater than or equal to first duration;or

send feedback information to the user equipment in a first subframe inthe subframe used for the second transmission, where a time intervalbetween the first subframe in the subframe used for the secondtransmission and the first subframe in the radio frame is greater thanor equal to second duration.

In this embodiment, that the transceiver module 11 sends feedbackinformation to the user equipment in a second subframe in the radioframe may include: sending, by the transceiver module 11, the feedbackinformation to the user equipment in the second subframe in the radioframe when the processing module 12 determines that a transmission delayfor sending the feedback information in the second subframe in the radioframe is less than or equal to a transmission delay for sending thefeedback information in the first subframe in the subframe used for thesecond transmission.

In this embodiment, that the transceiver module 11 sends feedbackinformation to the user equipment in a first subframe in the subframeused for the second transmission may include: when the processing module12 determines that a transmission delay for sending the feedbackinformation in the second subframe in the radio frame is greater than atransmission delay for sending the feedback information in the firstsubframe in the subframe used for the second transmission, sending, bythe transceiver module 11, the feedback information to the userequipment in the first subframe in the subframe used for the secondtransmission.

In this embodiment, when the transceiver module 11 sends, to the userequipment, feedback information indicating that the uplink data isunsuccessfully received, the transceiver module 11 may be furtherconfigured to receive, at an interval of third duration from a moment atwhich the feedback information is sent, retransmission data sent by theuser equipment.

In this embodiment, when the transceiver module 11 sends, to the userequipment, feedback information indicating that the uplink data isunsuccessfully received, the transceiver module 11 may be furtherconfigured to receive, in a third subframe in the radio frame,retransmission data sent by the user equipment, where the third subframein the radio frame is one of the subframes occupied by the firsttransmission resource, and a time interval between the third subframe inthe radio frame and a subframe used by the transceiver module 11 to sendthe feedback information is greater than or equal to fourth duration.

In this embodiment, that the processing module 12 controls thetransceiver module to communicate with the user equipment based on thefirst transmission resource may include: controlling the transceivermodule 11 to send second resource indication information to the userequipment to enable the user equipment to receive downlink data in afirst subframe that is determined according to the second resourceindication information, where the first subframe is one of subframesoccupied by the first transmission resource; and controlling thetransceiver module 11 to send the downlink data to the user equipment inthe first subframe.

In this embodiment, that the processing module 12 controls thetransceiver module 11 to communicate with the user equipment based onthe first transmission resource may include: controlling the transceivermodule 11 to send configuration information to the user equipment; andcontrolling the transceiver module 11 to receive a DMRS that is sent bythe user equipment on a transmission resource in the first transmissionresource according to the configuration information.

In this embodiment, the configuration information may include at leastone of the following information: indication information used toindicate a location of a time domain symbol used by the user equipmentto generate the DMRS, indication information used to indicate afrequency domain location at which the user equipment generates theDMRS, or indication information used to indicate transmit power forsending the DMRS by the user equipment.

In this embodiment, that the processing module 12 controls thetransceiver module 11 to communicate with the user equipment based onthe first transmission resource may include: controlling the transceivermodule 11 to send uplink control channel resource indication informationto the user equipment, where the uplink control channel resourceindication information indicates a time domain symbol location and afrequency domain location in a first subframe, the time symbol domainlocation and the frequency domain being both for an uplink controlchannel related to the first transmission, and the first subframe is oneof subframes occupied by the first transmission resource; andcontrolling the transceiver module 11 to receive, in the first subframe,uplink control information that is related to the first transmission andthat is sent by the user equipment according to the uplink controlchannel resource indication information.

It may be understood that, the network device 10 in this embodiment maycorrespondingly perform the wireless communication method 1000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the network device 10 may be separately used to implementcorresponding procedures in FIG. 4 to FIG. 10. For brevity, details arenot described herein again.

Based on the above, the network device for wireless communication inthis embodiment may send, to the user equipment, the resourceconfiguration information that indicates the first transmission resourcecorresponding to the first transmission, and communicate with the userequipment based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

With reference to FIG. 30, user equipment in an embodiment is describedin detail below. As shown in FIG. 30, user equipment 20 may include:

a transceiver module 21, configured to receive resource configurationinformation sent by a network device, where the resource configurationinformation is used to indicate a first transmission resourcecorresponding to first transmission, and duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond; and

a processing module 22, configured to control the transceiver module 21to communicate with the network device based on the first transmissionresource.

The user equipment may receive the resource configuration informationthat is sent by the network device and that is used to indicate thefirst transmission resource corresponding to the first transmission, andcommunicates with the network device based on the first transmissionresource. It may be understood that, the duration of a transmissionresource occupied by one transmission of the first transmission is lessthan 1 millisecond.

Based on the above, the user equipment in this embodiment receives theresource configuration information that is sent by the network deviceand that is used to indicate the first transmission resourcecorresponding to the first transmission, and communicates with thenetwork device based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

It may be understood that, in this embodiment, a receiving operationperformed by the transceiver module 21 may be performed by a receivingmodule with a receiving function, and a sending operation performed bythe transceiver module 21 may be performed by a sending module with asending function.

In this embodiment, the first transmission resource may occupy, in timedomain, one or more subframes in a MBSFN subframe set.

In this embodiment, that the processing module 22 controls thetransceiver module 21 to communicate with the network device based onthe first transmission resource may include:

controlling the transceiver module 21 to receive first resourceindication information sent by the network device; and

controlling the transceiver module 21 to send uplink data to the networkdevice in a first subframe, in a radio frame, determined according tothe first resource indication information, where the first subframe inthe radio frame is one of subframes occupied by the first transmissionresource.

In this embodiment, the radio frame may further include a subframe usedfor second transmission. Duration of a transmission resource occupied byone transmission of the second transmission is 1 ms.

In this embodiment, the transceiver module 21 may be further configuredto receive, in a second subframe in the radio frame, feedbackinformation sent by the network device, where the second subframe in theradio frame is one of the subframes occupied by the first transmissionresource, and a time interval between the second subframe in the radioframe and the first subframe in the radio frame is greater than or equalto first duration.

In this embodiment, the transceiver module 21 may be further configuredto receive, in a first subframe in the subframe used for the secondtransmission, feedback information sent by the network device, where atime interval between the first subframe in the subframe used for thesecond transmission and the first subframe in the radio frame is greaterthan or equal to second duration.

In this embodiment, when the transceiver module 21 receives feedbackinformation that is sent by the network device and that indicates thatthe network device unsuccessfully receives the uplink data, thetransceiver module 21 may be further configured to:

send retransmission data to the network device at an interval of thirdduration from a moment at which the feedback information is received; or

send retransmission data to the network device in a third subframe inthe radio frame, where the third subframe in the radio frame is one ofthe subframes occupied by the first transmission resource, and a timeinterval between the third subframe in the radio frame and a subframeused by the transceiver module 21 to receive the feedback information isgreater than or equal to fourth duration.

In this embodiment, that the transceiver module 21 sends retransmissiondata to the network device at an interval of third duration from amoment at which the feedback information is received may include: whenthe processing module 22 determines that the third duration is less thanthe time interval between the third subframe in the radio frame and thesubframe used by the transceiver module 21 to receive the feedbackinformation, sending, by the transceiver module 21, the retransmissiondata to the network device at the interval of the third duration fromthe moment at which the feedback information is received.

In this embodiment, that the transceiver module 21 sends retransmissiondata to the network device in a third subframe in the radio frame mayinclude: sending, by the transceiver module 21, the retransmission datato the network device in the third subframe in the radio frame when theprocessing module 22 determines that the third duration is greater thanor equal to the time interval between the third subframe in the radioframe and the subframe used by the transceiver module 21 to receive thefeedback information.

In this embodiment, that the processing module 22 controls thetransceiver module 21 to communicate with the network device based onthe first transmission resource may include:

controlling the transceiver module 21 to receive second resourceindication information sent by the network device; and

controlling the transceiver module 21 to receive, in a first subframethat is determined according to the second resource indicationinformation, downlink data sent by the network device, where the firstsubframe is one of subframes occupied by the first transmissionresource.

In this embodiment, that the processing module 22 controls thetransceiver module 21 to communicate with the network device based onthe first transmission resource may include:

controlling the transceiver module 21 to receive configurationinformation sent by the network device; and

controlling the transceiver module 21 to send a DMRS to the networkdevice on a transmission resource in the first transmission resourceaccording to the configuration information.

In this embodiment, the configuration information may include at leastone of the following information: indication information used toindicate a location of a time domain symbol used by the user equipmentto generate the DMRS, indication information used to indicate afrequency domain location at which the user equipment generates theDMRS, or indication information used to indicate transmit power forsending the DMRS by the user equipment.

In this embodiment, that the processing module 22 controls thetransceiver module 21 to communicate with the network device based onthe first transmission resource may include: controlling the transceivermodule 21 to receive uplink control channel resource indicationinformation sent by the network device, where the uplink control channelresource indication information indicates a time domain symbol locationand a frequency domain location in a first subframe, the time symboldomain location and the frequency domain being both for an uplinkcontrol channel related to the first transmission, and the firstsubframe is one of subframes occupied by the first transmissionresource; and controlling the transceiver module 21 to send, in thefirst subframe according to the uplink control channel resourceindication information, uplink control information related to the firsttransmission to the network device.

It may be understood that, the user equipment 20 in this embodiment maycorrespondingly perform the wireless communication method 3000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the user equipment 20 may be separately used to implementcorresponding procedures in FIG. 11 to FIG. 17. For brevity, details arenot described herein again.

Based on the above, the user equipment in this embodiment receives theresource configuration information that is sent by the network deviceand that is used to indicate the first transmission resourcecorresponding to the first transmission, and communicates with thenetwork device based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

With reference to FIG. 31, a network device in another embodiment isdescribed in detail below. As shown in FIG. 31, a network device 30 mayinclude:

a sending module 31, configured to send configuration information touser equipment; and

a receiving module 32, configured to receive a demodulation referencesignal (DMRS) that is generated according to the configurationinformation and that is sent by the user equipment, where all timedomain symbols included in a subframe in which a time domain symbol usedby the user equipment to generate the DMRS is located are allocated to Muser equipment, where M is an integer not less than 2.

After sending, to the user equipment, the configuration information usedby the user equipment to generate the DMRS, the network device mayreceive the DMRS that is generated by the user equipment according tothe configuration information, and all the time domain symbols includedin the subframe in which the time domain symbol used by the userequipment to generate the DMRS is located may be allocated to at leasttwo user equipment.

Based on the above, the network device in this embodiment may send theconfiguration information to the user equipment. All the time domainsymbols included in the subframe in which the time domain symbol islocated may be allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

It may be understood that, in this embodiment, a sending operationperformed by the sending module 31 and a receiving operation performedby the receiving module 32 may be performed by a transceiver module withreceiving and sending functions.

In this embodiment, the DMRS may be mapped, at intervals of Nsubcarriers, onto a subcarrier on a frequency domain resourcecorresponding to the time domain symbol used by the user equipment togenerate the DMRS, where N is a positive integer.

In this embodiment, N may be a total quantity of time domain symbolsoccupied by all DMRSs in the subframe in which the time domain symbolused by the user equipment to generate the DMRS is located.

In this embodiment, at least two of the M user equipment may usedifferent time domain symbols to generate a DMRS.

In this embodiment, the M user equipment may include at least two userequipment that are neighboring in terms of time domain resource, and allof the at least two user equipment that are neighboring in terms of timedomain resource may use a same time domain symbol to generate a DMRS.

In this embodiment, DMRSs generated by all the user equipment are mappedonto different subcarriers in frequency domain.

In this embodiment, DMRSs generated by all the user equipment are mappedonto a same subcarrier in frequency domain. The sending module 31 isfurther configured to send DMRS transmit power indication information tothe user equipment.

That the receiving module 32 receives a DMRS that is generated accordingto the configuration information and that is sent by the user equipmentmay include: receiving the DMRS that is sent by the user equipmentaccording to the DMRS transmit power indication information.

It may be understood that, the network device 30 in this embodiment maycorrespondingly perform the wireless communication method 4000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the network device 30 are separately used to implementcorresponding procedures in FIG. 18 to FIG. 21. For brevity, details arenot described herein again.

Based on the above, the network device in this embodiment may send theconfiguration information to the user equipment. All the time domainsymbols included in the subframe in which the time domain symbol islocated are allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

With reference to FIG. 32, user equipment in another embodiment isdescribed in detail below. As shown in FIG. 32, a user equipment 40 mayinclude:

a transceiver module 41, configured to receive configuration informationsent by a network device; and

a signal generation module 42, configured to generate a DMRS accordingto the configuration information, where all time domain symbols includedin a subframe in which a time domain symbol used to generate the DMRS islocated are allocated to M user equipment, where M is an integer notless than 2.

The transceiver module 41 may be further configured to send the DMRS tothe network device.

After receiving the configuration information sent by the networkdevice, the user equipment may generate the DMRS according to theconfiguration information, and send the DMRS to the network device. Allthe time domain symbols included in the subframe in which the timedomain symbol used by the user equipment to generate the DMRS is locatedmay be allocated to at least two user equipment.

Based on the above, the user equipment in this embodiment may generatethe DMRS according to the configuration information received from thenetwork device, and send the DMRS to the network device. All the timedomain symbols included in the subframe in which the time domain symbolis located are allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

It may be understood that, in this embodiment, a receiving operationperformed by the transceiver module 41 may be performed by a receivingmodule with a receiving function, and a sending operation performed bythe transceiver module 41 may be performed by a sending module with asending function.

In this embodiment, the DMRS may be mapped, at intervals of Nsubcarriers, onto a subcarrier on a frequency domain resourcecorresponding to the time domain symbol used to generate the DMRS, whereN is a positive integer.

In this embodiment, N is a total quantity of time domain symbolsoccupied by all DMRSs in the subframe in which the time domain symbolused to generate the DMRS is located.

In this embodiment, at least two of the M user equipment may usedifferent time domain symbols to generate a DMRS.

In this embodiment, the M user equipment may include at least two userequipment that are neighboring in terms of time domain resource, and allof the at least two user equipment that are neighboring in terms of timedomain resource may use a same time domain symbol to generate a DMRS.

In this embodiment, DMRSs generated by all the user equipment may bemapped onto different subcarriers in frequency domain.

In this embodiment, DMRSs generated by all the user equipment may bemapped onto a same subcarrier in frequency domain. The transceivermodule 41 may be further configured to:

receive DMRS transmit power indication information sent to the networkdevice; and

send the DMRS to the network device according to the DMRS transmit powerindication information.

It may be understood that, the user equipment 40 in this embodiment maycorrespondingly perform the wireless communication method 5000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the user equipment 40 may be separately used to implementcorresponding procedures in FIG. 22 and FIG. 23. For brevity, detailsare not described herein again.

Based on the above, the user equipment in this embodiment may generatethe DMRS according to the configuration information received from thenetwork device and send the DMRS to the network device. All the timedomain symbols included in the subframe in which the time domain symbolis located are allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

With reference to FIG. 33, a network device in still another embodimentis described in detail below. As shown in FIG. 33, a network device 50may include:

a sending module 51, configured to send resource indication informationto user equipment, where the resource indication information is used toindicate a resource occupied by an uplink control channel related tofirst transmission, and duration of occupying a resource by onetransmission of the first transmission is less than 1 ms; and

a receiving module 52, configured to receive uplink control informationthat is related to the first transmission and that is sent by the userequipment on the resource occupied by the uplink control channel.

The network device may send, to the user equipment, the resourceindication information that indicates the resource occupied by theuplink control channel related to the first transmission, and receivethe uplink control information that is related to the first transmissionand that is sent by the user equipment on the resource occupied by theuplink control channel. The duration of occupying a resource by onetransmission of the first transmission may be less than 1 ms.

Based on the above, the network device in this embodiment may send, tothe user equipment, the resource indication information of the resourceoccupied by the uplink control channel related to the firsttransmission, and receive the uplink control information that is relatedto the first transmission and that is sent by the user equipment on theresource occupied by the uplink control channel. Because the duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms, a transmission delay can be shortened, user experiencecan be improved, and network performance can be enhanced.

It may be understood that, in this embodiment, a sending operationperformed by the sending module 51 and a receiving operation performedby the receiving module 52 may be performed by a transceiver module withreceiving and sending functions.

In this embodiment, the resource indication information may includeinformation about a number of a subframe in which the resource occupiedby the uplink control channel related to the first transmission islocated and/or information about a time domain symbol location and afrequency domain location in a subframe that are corresponding to theresource occupied by the uplink control channel related to the firsttransmission.

In this embodiment, the resource indication information may indicatethat the resource occupied by the uplink control channel is Fm firstsubcarriers on a first subband and Fn second subcarriers on a secondsubband, the first subband and the second subband are in bandwidthoccupied by a physical uplink shared channel (PUSCH) in a firstsubframe, and are separated in frequency domain, and Fm and Fn arepositive integers.

In this embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In this embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband may be the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

In this embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

It may be understood that, the network device 50 in this embodiment maycorrespondingly perform the wireless communication method 6000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the network device 50 may be separately used to implementcorresponding procedures in FIG. 24. For brevity, details are notdescribed herein again.

Based on the above, the network device in this embodiment may send, tothe user equipment, the resource indication information of the resourceoccupied by the uplink control channel related to the firsttransmission, and receive the uplink control information that is relatedto the first transmission and that is sent by the user equipment on theresource occupied by the uplink control channel. Because the duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms, a transmission delay can be shortened, user experiencecan be improved, and network performance can be enhanced.

With reference to FIG. 34, user equipment in still another embodiment isdescribed in detail below. As shown in FIG. 34, user equipment 60 mayinclude:

an obtaining module 61, configured to obtain a resource occupied by anuplink control channel related to first transmission, where duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms; and

a transceiver module 62, configured to send, on the resource occupied bythe uplink control channel related to the first transmission, uplinkcontrol information related to the first transmission to a networkdevice.

The user equipment may obtain the resource occupied by the uplinkcontrol channel related to the first transmission, and send, on theresource, the uplink control information related to the firsttransmission to the network device. The duration of occupying a resourceby one transmission of the first transmission is less than 1 ms.

Based on the above, the user equipment in this embodiment may obtain theresource occupied by the uplink control channel related to the firsttransmission, and send, on the resource, the uplink control informationrelated to the first transmission to the network device. Because theduration of occupying a resource by one transmission of the firsttransmission is less than 1 ms, a transmission delay can be shortened,user experience can be improved, and network performance can beenhanced.

It may be understood that, in this embodiment, a receiving operationperformed by the transceiver module 62 may be performed by a receivingmodule with a receiving function, and a sending operation performed bythe transceiver module 62 may be performed by a sending module with asending function.

In this embodiment, the transceiver module 62 may be further configuredto receive resource indication information sent by the network device.

That the obtaining module 61 obtains a resource occupied by an uplinkcontrol channel related to first transmission may include:

obtaining, according to the resource indication information, theresource occupied by the uplink control channel related to the firsttransmission.

In this embodiment, the resource indication information may includeinformation about a number of a subframe in which the resource occupiedby the uplink control channel related to the first transmission islocated and/or information about a time domain symbol location and afrequency domain location in a subframe that are corresponding to theresource occupied by the uplink control channel related to the firsttransmission.

In this embodiment, the resource indication information may indicatethat the resource occupied by the uplink control channel related to thefirst transmission is Fm first subcarriers on a first subband and Fnsecond subcarriers on a second subband, the first subband and the secondsubband may be in bandwidth occupied by a PUSCH in a first subframe, andare separated in frequency domain, where Fm and Fn are positiveintegers.

In this embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In this embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband may be the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

In this embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

In this embodiment, that the transceiver module 62 sends, on theresource occupied by the uplink control channel related to the firsttransmission, uplink control information related to the firsttransmission to a network device may include:

mapping the uplink control information onto the first subband and thesecond subband by means of mapping first in frequency domain and then intime domain; and

sending, on the first subband and the second subband, the uplink controlinformation related to the first transmission to the network device.

It may be understood that, the user equipment 60 in this maycorrespondingly perform the wireless communication method 7000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the user equipment 60 may be separately used to implementcorresponding procedures in FIG. 26 to FIG. 28. For brevity, details arenot described herein again.

Based on the above, the user equipment in this embodiment may obtain theresource occupied by the uplink control channel related to the firsttransmission, and send, on the resource, the uplink control informationrelated to the first transmission to the network device. Because theduration of occupying a resource by one transmission of the firsttransmission is less than 1 ms, a transmission delay can be shortened,user experience can be improved, and network performance can beenhanced.

An embodiment may further provide a wireless communications system,including the network device 10 shown in FIG. 29 and the user equipment20 shown in FIG. 30. The network device 10 may correspondingly performthe wireless communication method 1000 in the embodiment, and theforegoing and other operations and/or functions of the modules in thenetwork device 10 may be separately used to implement correspondingprocedures in FIG. 4 to FIG. 10. The user equipment 20 maycorrespondingly perform the wireless communication method 3000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the user equipment 20 may be separately used to implementcorresponding procedures in FIG. 11 to FIG. 17. For brevity, details arenot described herein again.

An embodiment may further provide a wireless communications system,including the network device 30 shown in FIG. 31 and the user equipment40 shown in FIG. 32. The network device 30 may correspondingly performthe wireless communication method 4000 in the embodiment, and theforegoing and other operations and/or functions of the modules in thenetwork device 30 may be separately used to implement correspondingprocedures in FIG. 18 to FIG. 21. The user equipment 40 maycorrespondingly perform the wireless communication method 5000 in theembodiment, and the foregoing and other operations and/or functions ofthe modules in the user equipment 40 may be separately used to implementcorresponding procedures in FIG. 22 and FIG. 23. For brevity, detailsare not described herein again.

The embodiments further provide a wireless communications system, whichmay include the network device 50 shown in FIG. 33 and the userequipment 60 shown in FIG. 34. The network device 50 may correspondinglyperform the wireless communication method 6000 in the embodiment, andthe foregoing and other operations and/or functions of the modules inthe network device 50 may be separately used to implement correspondingprocedures in FIG. 24. The user equipment 60 may correspondingly performthe wireless communication method 7000 in the embodiment, and theforegoing and other operations and/or functions of the modules in theuser equipment 60 may be separately used to implement correspondingprocedures in FIG. 26 to FIG. 28. For brevity, details are not describedherein again.

As shown in FIG. 35, an embodiment may further provide a network device100, and the network device 100 may include a processor 101, a memory102, a receiver 103, a transmitter 104, and a bus system 105. The bussystem 105 is optional. The processor 101, the memory 102, the receiver103, and the transmitter 104 may be connected by using the bus system105. The memory 102 is configured to store an instruction. The processor101 is configured to execute the instruction stored in the memory 102,so as to control the receiver 103 to receive a signal and control thetransmitter 104 to send a signal. The transmitter 104 is configured tosend resource configuration information to user equipment, where theresource configuration information is used to indicate a firsttransmission resource corresponding to first transmission, and durationof a transmission resource occupied by one transmission of the firsttransmission is less than 1 millisecond. The processor 101 is configuredto control the receiver 103 and the transmitter 104 to communicate withthe user equipment based on the first transmission resource.

Based on the above, the network device for wireless communication inthis embodiment may send, to the user equipment, the resourceconfiguration information that indicates the first transmission resourcecorresponding to the first transmission, and communicate with the userequipment based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

It may be understood that, in this embodiment, the processor 101 may bea central processing unit (CPU), or the processor 101 may be anothergeneral purpose processor, a digital signal processor (DSP), anapplication-specific integrated circuit (ASIC), a field programmablegate array (FPGA) or another programmable logic device, a discrete gateor transistor logic device, a discrete hardware component, or the like.The general purpose processor may be a microprocessor, or the processormay be any conventional processor or the like.

The memory 102 may include a read-only memory (ROM) and a random accessmemory (RAM), and provide an instruction and data for the processor 101.A part of the memory 102 may further include a nonvolatile RAM. Forexample, the memory 102 may further store information about a devicetype.

In addition to a data bus, the bus system 105 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 105.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 101 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 102. The processor 101 reads informationfrom the memory 102, and completes the steps of the foregoing method incombination with the hardware in the processor 101. To avoid repetition,details are not described herein again.

In an embodiment, the first transmission resource may occupy, in timedomain, one or more subframes in a MBSFN subframe set.

In an embodiment, that the processor 101 controls the receiver 103 andthe transmitter 104 to communicate with the user equipment based on thefirst transmission resource may include:

controlling the transmitter 104 to send first resource indicationinformation to the user equipment; and

controlling the receiver 103 to receive uplink data that is sent by theuser equipment in a first subframe, in a radio frame, determinedaccording to the first resource indication information, where the firstsubframe in the radio frame is one of subframes occupied by the firsttransmission resource.

In an embodiment, the radio frame may further include a subframe usedfor second transmission. Duration of a transmission resource occupied byone transmission of the second transmission is 1 ms.

In an embodiment, the transmitter 104 may be further configured to:

send feedback information to the user equipment in a second subframe inthe radio frame, where the second subframe in the radio frame is one ofthe subframes occupied by the first transmission resource, and a timeinterval between the second subframe in the radio frame and the firstsubframe in the radio frame is greater than or equal to first duration;or

send feedback information to the user equipment in a first subframe inthe subframe used for the second transmission, where a time intervalbetween the first subframe in the subframe used for the secondtransmission and the first subframe in the radio frame is greater thanor equal to second duration.

In an embodiment, that the transmitter 104 sends feedback information tothe user equipment in a second subframe in the radio frame may include:sending, by the transmitter 104, the feedback information to the userequipment in the second subframe in the radio frame when the processor101 determines that a transmission delay for sending the feedbackinformation in the second subframe in the radio frame is less than orequal to a transmission delay for sending the feedback information inthe first subframe in the subframe used for the second transmission.

In an embodiment, that the transmitter 104 sends feedback information tothe user equipment in a first subframe in the subframe used for thesecond transmission may include: when the processor 101 determines thata transmission delay for sending the feedback information in the secondsubframe in the radio frame is greater than a transmission delay forsending the feedback information in the first subframe in the subframeused for the second transmission, sending, by the transmitter 104, thefeedback information to the user equipment in the first subframe in thesubframe used for the second transmission.

In an embodiment, when the transmitter 104 sends, to the user equipment,feedback information indicating that the uplink data is unsuccessfullyreceived, the receiver 103 may be further configured to receive, at aninterval of third duration from a moment at which the feedbackinformation is sent, retransmission data sent by the user equipment.

In an embodiment, when the transmitter 104 sends, to the user equipment,feedback information indicating that the uplink data is unsuccessfullyreceived, the receiver 103 may be further configured to receive, in athird subframe in the radio frame, retransmission data sent by the userequipment, where the third subframe in the radio frame is one of thesubframes occupied by the first transmission resource, and a timeinterval between the third subframe in the radio frame and a subframeused by the transmitter 104 to send the feedback information is greaterthan or equal to fourth duration.

In an embodiment, that the processor 101 controls the receiver 103 andthe transmitter 104 to communicate with the user equipment based on thefirst transmission resource may include:

controlling the transmitter 104 to send second resource indicationinformation to the user equipment to enable the user equipment toreceive downlink data in a first subframe that is determined accordingto the second resource indication information, where the first subframeis one of subframes occupied by the first transmission resource; and

controlling the transmitter 104 to send the downlink data to the userequipment in the first subframe.

In an embodiment, that the processor 101 controls the receiver 103 andthe transmitter 104 to communicate with the user equipment based on thefirst transmission resource may include:

controlling the transmitter 104 to send configuration information to theuser equipment; and

controlling the transmitter 103 to receive a DMRS that is sent by theuser equipment on a transmission resource in the first transmissionresource according to the configuration information.

In an embodiment, the configuration information includes at least one ofthe following information: indication information used to indicate alocation of a time domain symbol used by the user equipment to generatethe DMRS, indication information used to indicate a frequency domainlocation at which the user equipment generates the DMRS, or indicationinformation used to indicate transmit power for sending the DMRS by theuser equipment.

In an embodiment, that the processor 101 controls the receiver 103 andthe transmitter 104 to communicate with the user equipment based on thefirst transmission resource may include:

controlling the transmitter 104 to send uplink control channel resourceindication information to the user equipment, where the uplink controlchannel resource indication information indicates a time domain symbollocation and a frequency domain location in a first subframe, the timesymbol domain location and the frequency domain being both for an uplinkcontrol channel related to the first transmission, and the firstsubframe is one of subframes occupied by the first transmissionresource; and

controlling the receiver 103 to receive, in the first subframe, uplinkcontrol information that is related to the first transmission and thatis sent by the user equipment according to the uplink control channelresource indication information.

It may be understood that, the network device 100 in this embodiment maycorrespond to the network device 10 in the embodiment, and maycorrespond to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the network device 100 may be separately used to implementcorresponding procedures in FIG. 4 to FIG. 10. For brevity, details arenot described herein again.

Based on the above, the network device for wireless communication inthis embodiment may send, to the user equipment, the resourceconfiguration information that indicates the first transmission resourcecorresponding to the first transmission, and communicate with the userequipment based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

As shown in FIG. 36, an embodiment may further provide user equipment200, where the user equipment 200 includes a processor 201, a memory202, a receiver 203, a transmitter 204, and a bus system 205. The bussystem 205 is optional. The processor 201, the memory 202, the receiver203, and the transmitter 204 may be connected by using the bus system205. The memory 202 is configured to store an instruction. The processor201 is configured to execute the instruction stored in the memory 202,so as to control the receiver 203 to receive a signal and control thetransmitter 204 to send a signal. The receiver 203 is configured toreceive resource configuration information sent by a network device,where the resource configuration information is used to indicate a firsttransmission resource corresponding to first transmission, and durationof a transmission resource occupied by one transmission of the firsttransmission is less than 1 millisecond. The processor 201 is configuredto control the receiver 203 and the transmitter 204 to communicate withthe network device based on the first transmission resource.

Based on the above, the user equipment in this embodiment may receivethe resource configuration information that is sent by the networkdevice and that is used to indicate the first transmission resourcecorresponding to the first transmission, and communicate with thenetwork device based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

It may be understood that, in this embodiment, the processor 201 may bea CPU, or the processor 201 may be another general purpose processor, aDSP, an ASIC, a FPGA or another programmable logic device, a discretegate or transistor logic device, a discrete hardware component, or thelike. The general purpose processor may be a microprocessor, or theprocessor may be any conventional processor or the like.

The memory 202 may include a ROM and a RAM and provide an instructionand data for the processor 201. A part of the memory 202 may furtherinclude a nonvolatile RAM. For example, the memory 202 may further storeinformation about a device type.

In addition to a data bus, the bus system 205 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 205.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 201 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 202. The processor 201 reads informationfrom the memory 202 and completes the steps of the foregoing method incombination with the hardware in the processor 201. To avoid repetition,details are not described herein again.

In an embodiment, the first transmission resource may occupy, in timedomain, one or more subframes in a MBSFN subframe set.

In an embodiment, that the processor 201 controls the receiver 203 andthe transmitter 204 to communicate with the network device based on thefirst transmission resource may include:

controlling the receiver 203 to receive first resource indicationinformation sent by the network device; and

controlling the transmitter 204 to send uplink data to the networkdevice in a first subframe, in a radio frame, determined according tothe first resource indication information, where the first subframe inthe radio frame is one of subframes occupied by the first transmissionresource.

In an embodiment, the radio frame may further include a subframe usedfor second transmission. Duration of a transmission resource occupied byone transmission of the second transmission is 1 ms.

In an embodiment, the receiver 203 may be further configured to receive,in a second subframe in the radio frame, feedback information sent bythe network device, where the second subframe in the radio frame is oneof the subframes occupied by the first transmission resource, and a timeinterval between the second subframe in the radio frame and the firstsubframe in the radio frame is greater than or equal to first duration.

In an embodiment, the receiver 203 may be further configured to receive,in a first subframe in the subframe used for the second transmission,feedback information sent by the network device, where a time intervalbetween the first subframe in the subframe used for the secondtransmission and the first subframe in the radio frame is greater thanor equal to second duration.

In an embodiment, when the receiver 203 receives feedback informationthat is sent by the network device and that indicates that the networkdevice unsuccessfully receives the uplink data, the transmitter 204 maybe further configured to:

send retransmission data to the network device at an interval of thirdduration from a moment at which the feedback information is received; or

send retransmission data to the network device in a third subframe inthe radio frame, where the third subframe in the radio frame is one ofthe subframes occupied by the first transmission resource, and a timeinterval between the third subframe in the radio frame and a subframeused by the receiver 203 to receive the feedback information is greaterthan or equal to fourth duration.

In an embodiment, that the transmitter 204 sends retransmission data tothe network device at an interval of third duration from a moment atwhich the feedback information is received may include: when theprocessor 201 determines that the third duration is less than the timeinterval between the third subframe in the radio frame and the subframeused by the receiver 203 to receive the feedback information, sending,by the transmitter 204, the retransmission data to the network device atthe interval of the third duration from the moment at which the feedbackinformation is received.

In an embodiment, that the transmitter 204 sends retransmission data tothe network device in a third subframe in the radio frame may include:sending, by the transmitter 204, the retransmission data to the networkdevice in the third subframe in the radio frame when the processor 201determines that the third duration is greater than or equal to the timeinterval between the third subframe in the radio frame and the subframeused by the receiver 203 to receive the feedback information.

In an embodiment, that the processor 201 controls the receiver 203 andthe transmitter 204 to communicate with the network device based on thefirst transmission resource may include:

controlling the receiver 203 to receive second resource indicationinformation sent by the network device; and

controlling the receiver 203 to receive, in a first subframe that isdetermined according to the second resource indication information,downlink data sent by the network device, where the first subframe isone of subframes occupied by the first transmission resource.

In an embodiment, that the processor 201 controls the receiver 203 andthe transmitter 204 to communicate with the network device based on thefirst transmission resource may include:

controlling the receiver 203 to receive configuration information sentby the network device; and

controlling the transmitter 204 to send a demodulation reference signal(DMRS) to the network device on a transmission resource in the firsttransmission resource according to the configuration information.

In an embodiment, the configuration information may include at least oneof the following information: indication information used to indicate alocation of a time domain symbol used by the user equipment to generatethe DMRS, indication information used to indicate a frequency domainlocation at which the user equipment generates the DMRS, or indicationinformation used to indicate transmit power for sending the DMRS by theuser equipment.

In an embodiment, that the processor 201 controls the receiver 203 andthe transmitter 204 to communicate with the network device based on thefirst transmission resource may include:

controlling the receiver 203 to receive uplink control channel resourceindication information sent by the network device, where the uplinkcontrol channel resource indication information indicates a time domainsymbol location and a frequency domain location in a first subframe, thetime symbol domain location and the frequency domain being both for anuplink control channel related to the first transmission, and the firstsubframe is one of subframes occupied by the first transmissionresource; and

controlling the transmitter 204 to send, in the first subframe accordingto the uplink control channel resource indication information, uplinkcontrol information related to the first transmission to the networkdevice.

It may be understood that, the user equipment 200 in this embodiment maycorrespond to the user equipment 20 in the embodiment, and maycorrespond to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the user equipment 200 may be separately used to implementcorresponding procedures in FIG. 11 to FIG. 17. For brevity, details arenot described herein again.

Based on the above, the user equipment in this embodiment may receivethe resource configuration information that is sent by the networkdevice and that is used to indicate the first transmission resourcecorresponding to the first transmission, and communicate with thenetwork device based on the first transmission resource. In this way, acommunication delay between the network device and the user equipmentcan be shortened, user experience can be improved, and performance of awireless network can be enhanced.

As shown in FIG. 37, an embodiment may further provide a network device300, where the network device 300 includes a processor 301, a memory302, a receiver 303, a transmitter 304, and a bus system 305. The bussystem 305 is optional. The processor 301, the memory 302, the receiver303, and the transmitter 304 may be connected by using the bus system305. The memory 302 is configured to store an instruction. The processor301 is configured to execute the instruction stored in the memory 302,so as to control the receiver 303 to receive a signal and control thetransmitter 304 to send a signal. The transmitter 304 is configured tosend configuration information to user equipment. The receiver 303 isconfigured to receive a DMRS that is generated according to theconfiguration information and that is sent by the user equipment, whereall time domain symbols included in a subframe in which a time domainsymbol used by the user equipment to generate the DMRS is located areallocated to M user equipment, and M is an integer not less than 2.

Based on the above, the network device in this embodiment may send theconfiguration information to the user equipment. All the time domainsymbols included in the subframe in which the time domain symbol islocated may be allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

It may be understood that, in this embodiment, the processor 301 may bea CPU, or the processor 301 may be another general purpose processor, aDSP, an ASIC, a FPGA or another programmable logic device, a discretegate or transistor logic device, a discrete hardware component, or thelike. The general purpose processor may be a microprocessor, or theprocessor may be any conventional processor or the like.

The memory 302 may include a ROM and a RAM, and provide an instructionand data for the processor 301. A part of the memory 302 may furtherinclude a nonvolatile RAM. For example, the memory 302 may further storeinformation about a device type.

In addition to a data bus, the bus system 305 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 305.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 301 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 302. The processor 301 reads informationfrom the memory 302 and completes the steps of the foregoing method incombination with the hardware in the processor 301. To avoid repetition,details are not described herein again.

In an embodiment, the DMRS may be mapped, at intervals of N subcarriers,onto a subcarrier on a frequency domain resource corresponding to thetime domain symbol used by the user equipment to generate the DMRS, andN is a positive integer.

In an embodiment, N may be a total quantity of time domain symbolsoccupied by all DMRSs in the subframe in which the time domain symbolused by the user equipment to generate the DMRS is located.

In an embodiment, at least two of the M user equipment may use differenttime domain symbols to generate a DMRS.

In an embodiment, the M user equipment may include at least two userequipment that are neighboring in terms of time domain resource, and allof the at least two user equipment that are neighboring in terms of timedomain resource may use a same time domain symbol to generate a DMRS.

In an embodiment, DMRSs generated by all the user equipment are mappedonto different subcarriers in frequency domain.

In an embodiment, DMRSs generated by all the user equipment are mappedonto a same subcarrier in frequency domain. The transmitter 304 may befurther configured to send DMRS transmit power indication information tothe user equipment.

That the receiver 303 receives a DMRS that is generated according to theconfiguration information and that is sent by the user equipment mayinclude: receiving the DMRS that is sent by the user equipment accordingto the DMRS transmit power indication information.

It may be understood that the network device 300 in this embodiment maycorrespond to the network device 30 in the embodiment, and may becorresponding to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the network device 300 may be separately used to implementcorresponding procedures in FIG. 18 to FIG. 21. For brevity, details arenot described herein again.

Based on the above, the network device in this embodiment may send theconfiguration information to the user equipment. All the time domainsymbols included in the subframe in which the time domain symbol islocated may be allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

As shown in FIG. 38, an embodiment may further provide user equipment400, and the user equipment 400 may include a processor 401, a memory402, a receiver 403, a transmitter 404, and a bus system 405. The bussystem 405 is optional. The processor 401, the memory 402, the receiver403, and the transmitter 404 may be connected by using the bus system405. The memory 402 is configured to store an instruction. The processor401 is configured to execute the instruction stored in the memory 402,so as to control the receiver 403 to receive a signal and control thetransmitter 404 to send a signal. The receiver 403 is configured toreceive configuration information sent by a network device. Theprocessor 401 is configured to generate a DMRS according to theconfiguration information, where all time domain symbols included in asubframe in which a time domain symbol used to generate the DMRS islocated are allocated to M user equipment, and M is an integer not lessthan 2. The transmitter 404 is configured to send the DMRS to thenetwork device.

Based on the above, the user equipment in this embodiment may generatethe DMRS according to the configuration information received from thenetwork device, and sends the DMRS to the network device. All the timedomain symbols included in the subframe in which the time domain symbolis located are allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

It may be understood that, in this embodiment, the processor 401 may bea CPU, or the processor 401 may be another general purpose processor, aDSP, an ASIC, a FPGA or another programmable logic device, a discretegate or transistor logic device, a discrete hardware component, or thelike. The general purpose processor may be a microprocessor, or theprocessor may be any conventional processor or the like.

The memory 402 may include a ROM and a RAM, and provide an instructionand data for the processor 401. A part of the memory 402 may furtherinclude a nonvolatile RAM. For example, the memory 402 may further storeinformation about a device type.

In addition to a data bus, the bus system 405 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 405.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 401 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 402. The processor 401 reads informationfrom the memory 402, and completes the steps of the foregoing methods incombination with the hardware in the processor 401. To avoid repetition,details are not described herein again.

In an embodiment, the DMRS may be mapped, at intervals of N subcarriers,onto a subcarrier on a frequency domain resource corresponding to thetime domain symbol used to generate the DMRS, and N is a positiveinteger.

In an embodiment, N may be a total quantity of time domain symbolsoccupied by all DMRSs in the subframe in which the time domain symbolused to generate the DMRS is located.

In an embodiment, at least two of the M user equipment may use differenttime domain symbols to generate a DMRS.

In an embodiment, the M user equipment may include at least two userequipment that are neighboring in terms of time domain resource, and allof the at least two user equipment that are neighboring in terms of timedomain resource use a same time domain symbol to generate a DMRS.

In an embodiment, DMRSs generated by all the user equipment may bemapped onto different subcarriers in frequency domain.

In an embodiment, DMRSs generated by all the user equipment may bemapped onto a same subcarrier in frequency domain. The receiver 403 maybe further configured to:

receive DMRS transmit power indication information sent to the networkdevice.

The transmitter 404 may be configured to send the DMRS to the networkdevice according to the DMRS transmit power indication information.

It may be understood that, the user equipment 400 in this embodiment maycorrespond to the user equipment 40 in the embodiment, and maycorrespond to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the user equipment 400 may be separately used to implementcorresponding procedures in FIG. 22 and FIG. 23. For brevity, detailsare not described herein again.

Based on the above, the user equipment in this embodiment may generatethe DMRS according to the configuration information received from thenetwork device, and sends the DMRS to the network device. All the timedomain symbols included in the subframe in which the time domain symbolis located are allocated to at least two user equipment, where the timedomain symbol is used by the user equipment to generate the DMRSaccording to the configuration information sent by the network device.Therefore, an unnecessary delay in shortened-delay transmission can beavoided, and interference between DMRSs of different user equipment canbe reduced.

As shown in FIG. 39, an embodiment may further provide a network device500, and the network device 500 may include a processor 501, a memory502, a receiver 503, a transmitter 504, and a bus system 505. The bussystem 505 is optional. The processor 501, the memory 502, the receiver503, and the transmitter 504 may be connected by using the bus system505. The memory 502 is configured to store an instruction. The processor501 is configured to execute the instruction stored in the memory 502,so as to control the receiver 503 to receive a signal and control thetransmitter 504 to send a signal. The transmitter 504 is configured tosend resource indication information to user equipment, where theresource indication information is used to indicate a resource occupiedby an uplink control channel related to first transmission, and durationof occupying a resource by one transmission of the first transmission isless than 1 ms. The receiver 503 is configured to receive uplink controlinformation that is related to the first transmission and that is sentby the user equipment on the resource occupied by the uplink controlchannel.

Based on the above, the network device in this embodiment may send, tothe user equipment, the resource indication information of the resourceoccupied by the uplink control channel related to the firsttransmission, and receive the uplink control information that is relatedto the first transmission and that is sent by the user equipment on theresource occupied by the uplink control channel. Because the duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms, a transmission delay can be shortened, user experiencecan be improved, and network performance can be enhanced.

It may be understood that, in this embodiment, the processor 501 may bea CPU, or the processor 501 may be another general purpose processor, aDSP, an ASIC, a FPGA or another programmable logic device, a discretegate or transistor logic device, a discrete hardware component, or thelike. The general purpose processor may be a microprocessor, or theprocessor may be any conventional processor or the like.

The memory 502 may include a ROM and a RAM and provide an instructionand data for the processor 501. A part of the memory 502 may furtherinclude a nonvolatile RAM. For example, the memory 502 may further storeinformation about a device type.

In addition to a data bus, the bus system 505 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 505.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 501 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 502. The processor 501 reads informationfrom the memory 502, and completes the steps of the foregoing method incombination with the hardware in the processor 501. To avoid repetition,details are not described herein again.

In an embodiment, the resource indication information may includeinformation about a number of a subframe in which the resource occupiedby the uplink control channel related to the first transmission islocated and/or information about a time domain symbol location and afrequency domain location in a subframe that are corresponding to theresource occupied by the uplink control channel related to the firsttransmission.

In an embodiment, the resource indication information may indicate thatthe resource occupied by the uplink control channel is Fm firstsubcarriers on a first subband and Fn second subcarriers on a secondsubband, the first subband and the second subband are in bandwidthoccupied by a PUSCH in a first subframe, and are separated in frequencydomain, and Fm and Fn are positive integers.

In an embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In an embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband may be the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

In an embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

It may be understood that, the network device 500 in this embodiment maycorrespond to the network device 50 in the embodiment, and maycorrespond to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the network device 500 may be separately used to implementcorresponding procedures in FIG. 24. For brevity, details are notdescribed herein again.

Based on the above, the network device in this embodiment may send, tothe user equipment, the resource indication information of the resourceoccupied by the uplink control channel related to the firsttransmission, and receive the uplink control information that is relatedto the first transmission and that is sent by the user equipment on theresource occupied by the uplink control channel. Because the duration ofoccupying a resource by one transmission of the first transmission isless than 1 ms, a transmission delay can be shortened, user experiencecan be improved, and network performance can be enhanced.

As shown in FIG. 40, an embodiment may further provide user equipment600, and the user equipment 600 may include a processor 601, a memory602, a receiver 603, a transmitter 604, and a bus system 605. The bussystem 605 is optional. The processor 601, the memory 602, the receiver603, and the transmitter 604 may be connected by using the bus system605. The memory 602 is configured to store an instruction. The processor601 is configured to execute the instruction stored in the memory 602,so as to control the receiver 603 to receive a signal and control thetransmitter 604 to send a signal. The processor 601 is configured toobtain a resource occupied by an uplink control channel related to firsttransmission, where duration of occupying a resource by one transmissionof the first transmission is less than 1 ms. The transmitter 604 isconfigured to send, on the resource occupied by the uplink controlchannel related to the first transmission, uplink control informationrelated to the first transmission to a network device.

Based on the above, the user equipment in this embodiment may obtain theresource occupied by the uplink control channel related to the firsttransmission, and send, on the resource, the uplink control informationrelated to the first transmission to the network device. Because theduration of occupying a resource by one transmission of the firsttransmission is less than 1 ms, a transmission delay can be shortened,user experience can be improved, and network performance can beenhanced.

It may be understood that, in this embodiment, the processor 601 may bea CPU, or the processor 601 may be another general purpose processor, adigital DSP, an ASIC, a FPGA or another programmable logic device, adiscrete gate or transistor logic device, a discrete hardware component,or the like. The general purpose processor may be a microprocessor, orthe processor may be any conventional processor or the like.

The memory 602 may include a ROM and a RAM, and provide an instructionand data for the processor 601. A part of the memory 602 may furtherinclude a nonvolatile RAM. For example, the memory 602 may further storeinformation about a device type.

In addition to a data bus, the bus system 605 may include a power bus, acontrol bus, a status signal bus, and the like. However, for cleardescription, various types of buses in the diagram are marked as the bussystem 605.

In an implementation process, the steps in the foregoing method may becompleted by using an integrated logic circuit of hardware in theprocessor 601 or an instruction in a form of software. The steps of themethod disclosed with reference to the embodiment may be directlyperformed by a hardware processor, or may be performed by using acombination of the hardware in the processor and a software module. Thesoftware module may be located in a mature storage medium in the field,such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically-erasable programmable memory, or a register. The storagemedium is located in the memory 602. The processor 601 reads informationfrom the memory 602, and completes the steps of the foregoing method incombination with the hardware in the processor 601. To avoid repetition,details are not described herein again.

In an embodiment, the receiver 603 may be configured to receive resourceindication information sent by the network device.

That the processor 601 obtains a resource occupied by an uplink controlchannel related to first transmission may include: obtaining, accordingto the resource indication information, the resource occupied by theuplink control channel related to the first transmission.

In an embodiment, the resource indication information may includeinformation about a number of a subframe in which the resource occupiedby the uplink control channel related to the first transmission islocated and/or information about a time domain symbol location and afrequency domain location in a subframe that are corresponding to theresource occupied by the uplink control channel related to the firsttransmission.

In an embodiment, the resource indication information may indicate thatthe resource occupied by the uplink control channel related to the firsttransmission is Fm first subcarriers on a first subband and Fn secondsubcarriers on a second subband, the first subband and the secondsubband are in bandwidth occupied by a PUSCH in a first subframe, andare separated in frequency domain, and Fm and Fn are positive integers.

In an embodiment, the first subband and the second subband may belocated at two ends of the bandwidth occupied by the PUSCH.

In an embodiment, Fm may be equal to Fn, and locations of the Fm firstsubcarriers on the first subband are the same as or symmetrical withlocations of the Fn second subcarriers on the second subband.

In an embodiment, time domain symbols corresponding to the Fm firstsubcarriers may be the same as time domain symbols corresponding to theFn second subcarriers.

In an embodiment, that the transmitter 604 sends, on the resourceoccupied by the uplink control channel related to the firsttransmission, uplink control information related to the firsttransmission to a network device may include:

mapping the uplink control information onto the first subband and thesecond subband by means of mapping first in frequency domain and then intime domain; and

sending, on the first subband and the second subband, the uplink controlinformation related to the first transmission to the network device.

It may be understood that, the user equipment 600 in this embodiment maycorrespond to the user equipment 60 in the embodiment, and maycorrespond to an entity for performing a method in an embodiment. Inaddition, the foregoing and other operations and/or functions of themodules in the user equipment 600 may be separately used to implementcorresponding procedures in FIG. 26 to FIG. 28. For brevity, details arenot described herein again.

Based on the above, the user equipment in this embodiment may obtain theresource occupied by the uplink control channel related to the firsttransmission, and send, on the resource, the uplink control informationrelated to the first transmission to the network device. Because theduration of occupying a resource by one transmission of the firsttransmission is less than 1 ms, a transmission delay can be shortened,user experience can be improved, and network performance can beenhanced.

It may be understood that “an embodiment” or “an embodiment” does notmean that particular features, structures, or characteristics related tothe embodiment are included in at least one embodiment. Therefore, “inan embodiment” or “in an embodiment” appearing may not necessarily be asame embodiment. In addition, these particular features, structures, orcharacteristics may be combined in one or more embodiments by using anyappropriate manner.

It may be understood that sequence numbers of the foregoing processes donot mean execution sequences in various embodiments. The executionsequences of the processes may be determined according to functions andinternal logic of the processes, and may not be construed as anylimitation on the implementation processes of the embodiments.

In addition, the terms “system” and “network” may be usedinterchangeably. It may be understood that the term “and/or” describesonly an association relationship for describing associated objects andrepresents that three relationships may exist. For example, A and/or Bmay represent the following three cases: Only A exists, both A and Bexist, and only B exists. In addition, the character “/” generallyindicates an “or” relationship between the associated objects.

It may be understood that in the embodiments, “B corresponding to A”indicates that B is associated with A, and B may be determined accordingto A. However, it may further be understood that determining A accordingto B does not mean that B is determined according to A only; that is, Bmay also be determined according to A and/or other information.

A person of ordinary skill in the art may be aware that, in combinationwith the examples described in the embodiments, units and algorithmsteps may be implemented by electronic hardware, computer software, or acombination thereof. To describe the interchangeability between thehardware and the software, the foregoing has generally describedcompositions and steps of each example according to functions. Whetherthe functions are performed by hardware or software depends onparticular applications and design constraint conditions of thesolutions. A person of ordinary skill in the art may use differentmethods to implement the described functions for each particularapplication, but it may not be considered that the implementation goesbeyond the scope of the embodiments.

It may be understood by a person of ordinary skill in the art that, forthe purpose of convenient and brief description, for a detailed workingprocess of the foregoing system, apparatus, and unit, reference may bemade to a corresponding process in the foregoing method embodiments, anddetails are not described herein again.

In the several embodiments, it may be understood that the disclosedsystem, apparatus, and method may be implemented in other manners. Forexample, the described apparatus embodiment is merely an example. Forexample, the unit division is merely logical function division and maybe other division in actual implementation. For example, multiple unitsor components may be combined or integrated into another system, or somefeatures may be ignored or not performed. In addition, the displayed ordiscussed mutual couplings or direct couplings or communicationconnections may be implemented by using some interfaces. The indirectcouplings or communication connections between the apparatuses or unitsmay be implemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and parts displayed as units may or may not be physical units,may be located in one position, or may be distributed on multiplenetwork units. Some or all of the units may be selected according toactual requirements to achieve the objectives of the solutions of theembodiments.

In addition, functional units in the embodiments may be integrated intoone processing unit, or each of the units may exist alone physically, ortwo or more units are integrated into one unit.

When the integrated unit is implemented in the form of a softwarefunctional unit and sold or used as an independent product, theintegrated unit may be stored in a computer-readable storage medium.Based on such an understanding, the solutions essentially, or the partcontributing to the prior art, or some of the solutions may beimplemented in a form of a software product. The software product isstored in a storage medium and includes several instructions forinstructing a computer device (which may be a personal computer, aserver, a network device, or the like) to perform all or some of thesteps of the methods described in the embodiments. The foregoing storagemedium may include: any medium that can store program code, such as aUSB flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk,or an optical disc.

The foregoing descriptions are merely implementations of theembodiments, but are non-limiting. Any variation or replacement readilyfigured out by a person of ordinary skill in the art within the scopedisclosed shall fall within the protection scope of the embodiments.Therefore, the protection scope of the embodiments shall be subject tothe protection scope of the claims.

1. A wireless communication method, comprising: sending configurationinformation to user equipment, wherein the configuration informationindicates at least two first transmission resources, and duration ofeach of the at least two first transmission resources is less than 1millisecond (ms); sending first resource indication information to theuser equipment, wherein the first resource indication informationindicates one first transmission resource of the at least two firsttransmission resources in a first subframe; and receiving, on the onefirst transmission resource in the first subframe, uplink data from theuser equipment.
 2. The method according to claim 1, wherein the firstsubframe is within a multimedia broadcast multicast single frequencynetwork (MBSFN) subframes set.
 3. The method according to claim 1,further comprising: sending second resource indication information tothe user equipment, wherein the second resource indication informationindicates a resource for downlink data in the first subframe; andsending the downlink data to the user equipment on the resource fordownlink data in the first subframe.
 4. The method according to claim 1,wherein the configuration information further comprises indicationinformation indicating a time domain symbol location of a demodulationreference signal (DMRS); and the method further comprises: receiving theDMRS from the user equipment in the first subframe.
 5. The methodaccording to claim 1, further comprising: sending resource configurationinformation to the user equipment, wherein the resource configurationinformation indicates at least two second transmission resources, andduration of each of the at least two second transmission resources isless than 1 millisecond (ms); sending uplink control channel resourceindication information to the user equipment, wherein the uplink controlchannel resource indication information indicates a time domain symbollocation and a frequency domain location of one second transmissionresource of the at least two second transmission resources in a secondsubframe; and receiving, on the one second transmission resource in thesecond subframe, uplink control information from the user equipment. 6.A wireless communication method, comprising: receiving configurationinformation from a network device, wherein the configuration informationindicates at least two first transmission resources, wherein a durationof each of the at least two first transmission resources is less than 1millisecond (ms); receiving uplink control channel resource indicationinformation from the network device, wherein the uplink control channelresource indication information indicates one first transmissionresource of the at least two first transmission resources in a firstsubframe; and sending, on the one first transmission resource in thefirst subframe, uplink data to the network device.
 7. The methodaccording to claim 6, wherein the first subframe is within a multimediabroadcast multicast single frequency network (MBSFN) subframes set. 8.The method according to claim 6, further comprising: receiving secondresource indication information from the network device, wherein thesecond resource indication information indicates a resource for downlinkdata in the first subframe; and receiving, on the resource for downlinkdata in a first subframe, downlink data from the network device.
 9. Themethod according to claim 6, wherein the configuration informationfurther comprises indication information indicating a time domain symbollocation of a demodulation reference signal (DMRS); and the methodfurther comprises: sending the DMRS from the user equipment in the firstsubframe.
 10. The method according to claim 6, further comprising:receiving resource configuration information from the network device,wherein the resource configuration information indicates at least twosecond transmission resources, wherein a duration of each of the atleast two second transmission resources is less than 1 millisecond (ms);receiving uplink control channel resource indication information fromthe network device, wherein the uplink control channel resourceindication information indicates a time domain symbol location and afrequency domain location of one second transmission resource of the atleast two second transmission resources in a second subframe; andsending, on the one second transmission resource in the second subframe,uplink control information to the network device.
 11. A device,comprising: a memory storage comprising instructions; and one or moreprocessors in communication with the memory storage, wherein the one ormore processors execute the instructions to: send configurationinformation to user equipment, wherein the configuration informationindicates at least two first transmission resources, and duration ofeach of the at least two first transmission resources is less than 1millisecond (ms); send first resource indication information to the userequipment, wherein the first resource indication information indicatesone first transmission resource of the at least two first transmissionresources in a first subframe; and receive, on the one firsttransmission resource in the first subframe, uplink data from the userequipment.
 12. The device according to claim 11, wherein the firstsubframe is within a multimedia broadcast multicast single frequencynetwork (MBSFN) subframes set.
 13. The device according to claim 11,wherein the one or more processors further execute the instructions to:send second resource indication information to the user equipment,wherein the second resource indication information indicates a resourcefor downlink data in the first subframe; and send the downlink data tothe user equipment on the resource for downlink data in the firstsubframe.
 14. The device according to claim 11, wherein theconfiguration information further comprises indication informationindicating a time domain symbol location of a demodulation referencesignal (DMRS); and the one or more processors further execute theinstructions to: receive the DMRS from the user equipment in the firstsubframe.
 15. The device according to claim 11, wherein the one or moreprocessors further execute the instructions to: send resourceconfiguration information to user equipment, wherein the resourceconfiguration information indicates at least two second transmissionresources, and duration of each of the at least two second transmissionresources is less than 1 millisecond (ms); send uplink control channelresource indication information to the user equipment, wherein theuplink control channel resource indication information indicates a timedomain symbol location and a frequency domain location of one secondtransmission resource of the at least two second transmission resourcesin a second subframe; and receive, on the one second transmissionresource in the second subframe, uplink control information from theuser equipment.
 16. A device, comprising: a memory storage comprisinginstructions; and one or more processors in communication with thememory storage, wherein the one or more processors execute theinstructions to: receive configuration information from a networkdevice, wherein the resource configuration information indicates atleast two first transmission resources, wherein a duration of each ofthe at least two first transmission resources is less than 1 millisecond(ms); receive uplink control channel resource indication informationfrom the network device, wherein the uplink control channel resourceindication information indicates one first transmission resource of theat least two first transmission resources in a first subframe; and send,on the one first transmission resource in the first subframe, uplinkdata to the network device.
 17. The device according to claim 16,wherein the first subframe is within a multimedia broadcast multicastsingle frequency network (MBSFN) subframes set.
 18. The device accordingto claim 16, wherein the method further comprises: receiving secondresource indication information from the network device, wherein thesecond resource indication information indicates a resource for downlinkdata in the first subframe; and receiving, on the resource for downlinkdata in a first subframe, downlink data from the network device.
 19. Thedevice according to claim 16, wherein the configuration informationfurther comprises indication information indicating a time domain symbollocation of a demodulation reference signal (DMRS); and the one or moreprocessors further execute the instructions to: send the DMRS from theuser equipment in the first subframe.
 20. The device according to claim16, wherein the one or more processors further execute the instructionsto: receive resource configuration information from a network device,wherein the resource configuration information indicates at least twosecond transmission resources, wherein a duration of each of the atleast two second transmission resources is less than 1 millisecond (ms);receive uplink control channel resource indication information from thenetwork device, wherein the uplink control channel resource indicationinformation indicates a time domain symbol location and a frequencydomain location of one second transmission resource of the at least twosecond transmission resources in a second subframe; and send, on the onesecond transmission resource in the second subframe, uplink controlinformation to the network device.